Evaporation inhibitor for plant treatment agents

Abstract

The present invention is an evaporation retardant for a plant treatment agent, the evaporation retardant comprising at least one compound selected from: (A1) compounds obtained by adding a predetermined amount of at least one alkylene oxide (hereinafter, referred to as AO) selected from ethylene oxide (hereinafter, referred to as EO) and propylene oxide (hereinafter, referred to as PO) to a predetermined alcohol; (A2) compounds obtained by adding a predetermined amount of at least one AO selected from EO and PO to a predetermined carboxylic acid; (A3) compounds obtained by adding a predetermined amount of at least one AO selected from EO and PO to a monoester of sorbitan and a fatty acid having a carbon number of 10-20; (A4) polyalkylene glycols having a weight average molecular weight of 100-3000; (A5) predetermined ester compounds; and (A6) predetermined carboxylic acids.

Description

[Technical Field]

[0001] The present invention relates to an evaporation inhibitor for plant treatment agents, an evaporation inhibitor composition for plant treatment agents, an agricultural chemical efficacy enhancer composition, a plant treatment agent composition, and a method for treating plants.

[0002] Background technology In recent years, issues affecting food supply, such as a declining and aging agricultural workforce and an increase in natural disasters due to climate change, have become increasingly prevalent. Improving productivity for safe and secure food production is a particularly important issue. Against this backdrop, development of pesticide spraying technologies using industrial multirotor drones (drones) is underway to mechanize and automate food production, particularly agricultural crop production, and reduce pesticide use. Drone spraying offers several advantages, including reduced work time and labor, reduced pesticide and water use due to improved spraying accuracy, and the ability to operate after sunset. However, it also faces challenges, such as the long distance required to spray from a high altitude and low water volume, which significantly reduces pesticide coverage due to droplet evaporation during flight, and the likelihood of pesticide drift due to wind. Furthermore, drone spraying technology is expected to be effective in addressing issues such as a declining and aging agricultural workforce in Japan. It also enables application of low water volumes, which is particularly important for expanding cultivated areas in arid regions where food shortages are severe.

[0003] Pesticides are used for purposes such as increasing and protecting useful plants such as agricultural crops, and exterminating harmful plants and insect pests such as weeds. Pesticide potentiator compositions have been developed to fully utilize the effects of pesticides. For example, Japanese Patent Application Laid-Open No. 2012-184187 discloses a pesticide potentiator composition containing one or more compounds (A) selected from a specific ethoxylate compound, a specific polyoxyethylene fatty acid ester, a specific polyoxyethylene sorbitan fatty acid ester, a specific (poly)glycerin fatty acid ester, and a specific alkyl saccharide, and one or more compounds (B) selected from alcohols having a linear or branched alkyl group having 8 to 14 carbon atoms. International Publication No. 2018 / 173184 discloses a pesticide potentiator composition containing (A) a specific polyoxyethylene fatty acid ester, (B) a specific fatty alcohol, and (C) a specific fatty acid.

[0004] On the other hand, when applying pesticides as fine droplets by aerial spraying, etc., it is desirable that the droplets contain a high concentration of the pesticide and have a small particle size. However, such fine droplets tend to lose their moisture easily, which can lead to the pesticide not achieving its intended effect. Furthermore, further miniaturization of the droplets makes them more susceptible to scattering, raising concerns about their dispersion into the surrounding environment. Therefore, it is desirable to minimize the evaporation of moisture from the droplets. Japanese Patent Application Laid-Open No. 61-122202 discloses an evaporation inhibitor for use in spray mixtures of pesticides that are sprayed by the low-volume method, in the form of a wax-containing aqueous dispersion or a self-emulsifying organic solvent solution, and that contains 15 to 50% by weight of a wax or wax mixture, 4 to 20% by weight of a nonionic and / or anionic emulsifier, 19.5 to 81% by weight of water and / or an organic solvent selected from the group consisting of hydrocarbons, esters, and ketones having a boiling point of 70 to 280°C, 0 to 5.5% by weight of other auxiliaries, and 0 to 5.0% by weight of an amine or alkali.

[0005] Summary of the Invention Efficient application of pesticides and other plant treatment agents leads to improved productivity of crops and other plants. One measure to achieve this is the development of technology that can efficiently spray pesticides and other plant treatment agents at high concentrations using low water volumes from aircraft such as drones.

[0006] The present invention provides an evaporation inhibitor for plant treatment agents that can efficiently enhance the efficacy of plant treatment agents such as pesticides, and that can improve the coverage of plant treatment agents such as pesticides when the plant treatment agents are applied at high concentrations and in small amounts of water, for example, when sprayed by drone.

[0007] The present invention relates to an evaporation inhibitor for plant treatment agents, comprising (A) at least one compound selected from the following compounds (A1) to (A6) [hereinafter referred to as component (A)]. <Compound (A1)> A compound in which at least one alkylene oxide (hereinafter referred to as AO) selected from ethylene oxide (hereinafter referred to as EO) and propylene oxide (hereinafter referred to as PO) is added to a compound of the following formula (I) in an average addition mole number of 1 to 22: R 1 OH (I) [In formula (I), R 1 is an alkyl group having 10 to 14 carbon atoms or an alkenyl group having 10 to 14 carbon atoms. <Compound (A2)> A compound in which at least one AO selected from EO and PO is added to a compound of the following formula (II) in an average molar number of 1 to 22: R 2 -COOH (II) [In formula (II), R 2 is an alkyl group having 11 to 19 carbon atoms or an alkenyl group having 11 to 19 carbon atoms. <Compound (A3)> A compound in which at least one AO selected from EO and PO is added to a monoester of a fatty acid having 10 to 20 carbon atoms and sorbitan with an average addition mole number of 1 to 22. <Compound (A4)> Polyalkylene glycol with a weight-average molecular weight of 100 to 3000 <Compound (A5)> A compound represented by the following formula (III): R 3 -COO-R 4 (III) [In formula (III), R 3 is an alkyl group having 15 to 19 carbon atoms, R 4 is an alkyl group having 1 to 18 carbon atoms. <Compound (A6)> A compound represented by the following formula (IV): R 5 -COOH (IV) [In formula (IV), R 5 is an alkyl group having 7 to 19 carbon atoms or an alkenyl group having 7 to 19 carbon atoms.

[0008] The present invention also relates to an evaporation inhibitor composition for plant treatment agents, which contains the evaporation inhibitor for plant treatment agents of the present invention.

[0009] The present invention also relates to an agrochemical efficacy potentiator composition comprising the evaporation inhibitor for plant treatment agents of the present invention and (B) an agrochemical efficacy potentiator other than component (A).

[0010] The present invention also relates to a plant treatment agent composition containing the evaporation inhibitor for use in plant treatment agents of the present invention and a plant treatment agent.

[0011] The present invention also relates to a method for treating plants, which comprises the step of applying to plants a treatment solution containing the evaporation inhibitor for use in plant treatment agents of the present invention and a plant treatment agent.

[0012] According to the present invention, there are provided an evaporation inhibitor for plant treatment agents that can efficiently enhance the efficacy of plant treatment agents such as pesticides, and that can improve the coverage of plant treatment agents such as pesticides when applying the plant treatment agents such as pesticides at high concentrations and in small amounts of water, for example, by spraying them using a drone, as well as a pesticide efficacy enhancer composition, a plant treatment agent composition, and a plant treatment method that contain the same. The evaporation inhibitor for plant treatment agents of the present invention, and the agricultural chemical efficacy enhancer composition and plant treatment agent composition containing the same, can be used safely without causing phytotoxicity to various plants. [Brief explanation of the drawings]

[0013] [Figure 1] Schematic diagram showing the spraying position of the pesticide composition in Example 1 etc. [Figure 2] Schematic diagram showing the spraying position of the pesticide composition in Example 7

[0014] MODE FOR CARRYING OUT THE INVENTION The evaporation inhibitor for plant treatment agents of the present invention can suppress the evaporation of water during spraying, and therefore can efficiently enhance the efficacy of plant treatment agents such as pesticides, and can demonstrate excellent coating-enhancing capabilities for plant treatment agents such as pesticides, particularly when sprayed at high concentrations and with low water volumes using drones. Although the details of the mechanism of action of the evaporation inhibitor for use in plant treatment agents according to the present invention are not clear, it is thought to be as follows. When spraying pesticides and other chemicals to be applied to plants, water is generally used as a solvent and dispersant, and they are applied to the target plants using spraying devices such as atomizers and sprayers. For example, in the case of pesticides, the amount used is kept as low as possible considering the environmental impact, and ingredients that improve spreadability may be incorporated to efficiently adhere the pesticide to the area where it is effective. For example, to apply the pesticide to the entire surface of the leaf, methods such as directly applying the pesticide to the entire surface of the leaf or wetting and spreading the pesticide after application, i.e., spreading it to cover the entire surface, are used. Direct application to the entire surface requires a large amount of spray, which is wasteful and unsuitable for the above purpose. When spreading, a spreading component with high wetting and spreading properties can be used, but after spraying the pesticide, the solvent and dispersant such as water evaporate before it adheres to the leaves, and it becomes concentrated at the time of application to the leaves, increasing its viscosity and making it difficult to spread. In particular, the fall distance, the influence of wind, and the size of the droplets (surface area of the droplets) increase the floating time after spraying, contributing to the evaporation of solvents and dispersants such as water. It is believed that the inclusion of the evaporation inhibitor for plant treatment agents of the present invention can inhibit the evaporation of solvents and dispersants after spraying, thereby maintaining high wetting and spreading properties after adhesion to leaves. Furthermore, since the evaporation inhibitor for plant treatment agents of the present invention is effective at amounts much smaller than the amount required to completely cover the droplet surface, it is believed that the effect is not achieved by covering the droplet surface, but rather by forming a structure that is resistant to evaporation, such as by forming a complex with other components such as pesticides, although the details are unknown. Because such effects are achieved, it is believed that the evaporation inhibitor for plant treatment agents of the present invention is more effective when sprayed using a drone that generates wind and that sprays at high altitudes, with high pesticide concentrations, and with small spray volumes.

[0015] [Evaporation inhibitor for plant treatment agents] The evaporation inhibitor for plant treatment agents of the present invention comprises component (A), which is at least one compound selected from the following compounds (A1) to (A6). The evaporation inhibitor for plant treatment agents of the present invention may consist of one or more of compounds (A1) to (A6). Component (A) is preferably at least one compound selected from the following compounds (A2), (A3), (A4), and (A6), more preferably at least one compound selected from compound (A3), compound (A4), and compound (A6), and even more preferably any one of compound (A3) and compound (A6).

[0016] <Compound (A1)> A compound in which at least one AO selected from EO and PO is added to a compound of the following formula (I) in an average addition mole number of 1 to 22: R 1 OH (I) [In formula (I), R 1 is an alkyl group having 10 to 14 carbon atoms or an alkenyl group having 10 to 14 carbon atoms. <Compound (A2)> A compound in which at least one AO selected from EO and PO is added to a compound of the following formula (II) in an average molar number of 1 to 22: R 2 -COOH (II) [In formula (II), R 2 is an alkyl group having 11 to 19 carbon atoms or an alkenyl group having 11 to 19 carbon atoms. <Compound (A3)> A compound in which at least one AO selected from EO and PO is added to a monoester of a fatty acid having 10 to 20 carbon atoms and sorbitan with an average addition mole number of 1 to 22. <Compound (A4)> Polyalkylene glycol with a weight-average molecular weight of 100 to 3000 <Compound (A5)> A compound represented by the following formula (III): R 3 -COO-R 4 (III) [In formula (III), R 3 is an alkyl group having 15 to 19 carbon atoms, R 4 is an alkyl group having 1 to 18 carbon atoms. <Compound (A6)> A compound represented by the following formula (IV): R 5 -COOH (IV) [In formula (IV), R 5 is an alkyl group having 7 to 19 carbon atoms or an alkenyl group having 7 to 19 carbon atoms.

[0017] [Compound (A1)] The compound (A1) of the present invention is a compound in which at least one AO selected from EO and PO is added to a compound of the following formula (I) in an average added mole number of 1 or more and 22 or less. R 1 OH (I) [In formula (I), R 1 is an alkyl group having 10 to 14 carbon atoms or an alkenyl group having 10 to 14 carbon atoms.

[0018] The AO is at least one selected from EO and PO, and may be either one or a mixture of two. When two are mixed, they may be block or random. EO is preferred as the AO from the viewpoint of improving the coverage of plant treatment agents such as pesticides (hereinafter also referred to as coverage). From the viewpoint of improving coverage, the average number of moles of AO added is 1 or more, preferably 2 or more, more preferably 3 or more, even more preferably 4 or more, and even more preferably 5 or more, and from the same viewpoint, it is 22 or less, preferably 20 or less, more preferably 18 or less, and even more preferably 15 or less.

[0019] In formula (I), R 1 R is an alkyl group having 10 to 14 carbon atoms or an alkenyl group having 10 to 14 carbon atoms. 1 From the viewpoint of improving the coverage, the number of carbon atoms in R is 10 or more, preferably 11 or more, and 14 or less, preferably 13 or less, and more preferably 12. 1 R may be linear or branched.1 From the viewpoint of improving the coverage, is preferably a linear or branched alkyl group, and more preferably a linear alkyl group.

[0020] Specific examples of the compound of formula (I) include n-decanol, isodecanol, 2-propylheptanol, 4-methyl-2-propylhexanol, n-dodecanol, sec-dodecanol, tridecanol, n-tetradecanol, and sec-tetradecanol. From the viewpoint of improving the coverage, n-dodecanol, sec-dodecanol, and tridecanol are preferred, and n-dodecanol is more preferred.

[0021] Specific examples of compound (A1) include polyoxyethylene (1 to 22) decyl ether, polyoxyethylene (1 to 22) dodecyl ether, polyoxyethylene (1 to 22) tridecyl ether, polyoxyethylene (1 to 22) tetradecyl ether, and compounds in which some or all of the oxyethylenes in these compounds have been substituted with oxypropylene. From the viewpoint of improving coverage, polyoxyethylene (1 to 22) dodecyl ether is preferred, polyoxyethylene (5 to 12) dodecyl ether is more preferred, and polyoxyethylene (6) dodecyl ether is even more preferred. Here, the number in parentheses is the average number of moles of AO added (the same applies to compounds (A2) and (A3)).

[0022] [Compound (A2)] The compound (A2) of the present invention is a compound in which at least one AO selected from EO and PO is added to a compound of the following formula (II) in an average added mole number of 1 or more and 22 or less. R 2 -COOH (II) [In formula (II), R 2 is an alkyl group having 11 to 19 carbon atoms or an alkenyl group having 11 to 19 carbon atoms.

[0023] In the compound (A2), the preferred embodiment of AO and the preferred average number of moles added are the same as those in the compound (A1).

[0024] In formula (II), R 2 is an alkyl group having 11 to 19 carbon atoms or an alkenyl group having 11 to 19 carbon atoms. 2 From the viewpoint of improving the coverage, the number of carbon atoms in R is 11 or more, preferably 13 or more, more preferably 15 or more, and 19 or less, preferably 18 or less, more preferably 17 or less. 2 R may be linear or branched. 2 From the viewpoint of improving the coverage, is preferably a linear alkyl group or a linear alkenyl group, and more preferably a linear alkenyl group.

[0025] Specific examples of the compound of formula (II) include saturated fatty acids such as dodecanoic acid, tetradecanoic acid, hexadecanoic acid, octadecanoic acid, and eicosanoic acid, and unsaturated fatty acids such as dodecenoic acid, tetradecenoic acid, hexadecenoic acid, oleic acid, linoleic acid, and linolenic acid. From the viewpoint of improving the coverage, dodecanoic acid, tetradecanoic acid, oleic acid, linoleic acid, and linolenic acid are preferred, and oleic acid is more preferred.

[0026] Specific examples of compound (A2) include polyoxyethylene (1 or more and 22 or less) laurate, polyoxyethylene (1 or more and 22 or less) myristate, polyoxyethylene (1 or more and 22 or less) palmitate, polyoxyethylene (1 or more and 22 or less) stearate, polyoxyethylene (1 or more and 22 or less) oleate, and compounds in which part or all of the oxyethylene is substituted with oxypropylene. From the viewpoint of improving coverage, polyoxyethylene (1 or more and 22 or less) oleate is preferred, polyoxyethylene (5 or more and 12 or less) oleate is more preferred, and polyoxyethylene (10) oleate is even more preferred.

[0027] [Compound (A3)] The compound (A3) is a compound in which at least one AO selected from EO and PO is added to a monoester of a fatty acid having 10 to 20 carbon atoms and sorbitan in an average addition mole number of 1 to 22.

[0028] In the compound (A3), the preferred embodiment of AO and the preferred average number of moles added are the same as those in the compound (A1).

[0029] The number of carbon atoms of the fatty acid, which is one of the constituents of compound (A3), is 10 or more, preferably 11 or more, more preferably 12 or more, and 20 or less, preferably 18 or less, more preferably 16 or less, from the viewpoint of improving the coverage. The fatty acid may be saturated or unsaturated, and from the viewpoint of improving the coverage, it is preferably a straight-chain saturated fatty acid or unsaturated fatty acid, more preferably a straight-chain saturated fatty acid. Specific examples of the fatty acid include saturated fatty acids such as decanoic acid, dodecanoic acid, tetradecanoic acid, hexadecanoic acid, octadecanoic acid, and eicosanoic acid, and unsaturated fatty acids such as dodecenoic acid, tetradecenoic acid, hexadecenoic acid, oleic acid, linoleic acid, and linolenic acid. From the viewpoint of improving the coverage, it is preferably dodecanoic acid, tetradecanoic acid, or oleic acid, more preferably dodecanoic acid.

[0030] Specific examples of the monoester of fatty acid and sorbitan include sorbitan monolaurate, sorbitan monomyristate, sorbitan monopalmitate, sorbitan monostearate, and sorbitan monooleate. From the viewpoint of improving the coverage, preferred are sorbitan monolaurate, sorbitan monomyristate, and sorbitan monooleate, and more preferred is sorbitan monolaurate.

[0031] Specific examples of compound (A3) include polyoxyethylene (1 or more and 22 or less) sorbitan monolaurate, polyoxyethylene (1 or more and 22 or less) sorbitan monomyristate, polyoxyethylene (1 or more and 22 or less) sorbitan monopalmitate, polyoxyethylene (1 or more and 22 or less) sorbitan monostearate, polyoxyethylene (1 or more and 22 or less) sorbitan monooleate, and compounds in which part or all of the oxyethylene in these compounds has been substituted with oxypropylene. From the viewpoint of improving the coverage, polyoxyethylene (1 or more and 22 or less) sorbitan monolaurate is preferred, polyoxyethylene (5 or more and 12 or less) sorbitan monolaurate is more preferred, and polyoxyethylene (6) sorbitan monolaurate is even more preferred.

[0032] [Compound (A4)] Compound (A4) is a polyalkylene glycol having a weight-average molecular weight of 100 or more and 3000 or less. From the viewpoint of improving the coverage, the weight-average molecular weight of compound (A4) is 100 or more, preferably 150 or more, more preferably 200 or more, and 3000 or less, preferably 2500 or less, more preferably 2000 or less. This weight-average molecular weight is measured by gel permeation chromatography (GPC).

[0033] Examples of the compound (A4) include the following compound (A4-1) and compound (A4-2). <Compound (A4-1)> Polyethylene glycol with a weight-average molecular weight of 100 to 3000 <Compound (A4-2)> Polypropylene glycol with a weight-average molecular weight of 800 to 3000

[0034] Compound (A4-1) is a polyethylene glycol having a weight-average molecular weight of 100 or more and 3000 or less. From the viewpoint of improving the coverage, the weight-average molecular weight of compound (A4-1) is 100 or more, preferably 150 or more, more preferably 200 or more, and 3000 or less, preferably 2500 or less, more preferably 2000 or less. This weight-average molecular weight is measured by gel permeation chromatography (GPC).

[0035] Compound (A4-2) is a polypropylene glycol having a weight-average molecular weight of 800 to 3000. From the viewpoint of improving the coverage, the weight-average molecular weight of compound (A4-2) is 800 or more, preferably 1000 or more, more preferably 1500 or more, and 3000 or less, preferably 2500 or less, more preferably 2000 or less. This weight-average molecular weight is measured by gel permeation chromatography (GPC).

[0036] [Compound (A5)] The compound (A5) of the present invention is a compound represented by the following formula (III). R 3 -COO-R 4 (III) [In formula (III), R 3 is an alkyl group having 15 to 19 carbon atoms, R 4 is an alkyl group having 1 to 18 carbon atoms.

[0037] In formula (III), R 3 is an alkyl group having 15 to 19 carbon atoms. 3 From the viewpoint of improving the coverage, the number of carbon atoms in R is 15 or more, preferably 16 or more, and 19 or less, preferably 18 or less, more preferably 17. 3 R may be linear or branched. 3 is preferably a linear alkyl group from the viewpoint of improving the coverage.

[0038] In formula (III), R 4 is an alkyl group having 1 to 18 carbon atoms.4 From the viewpoint of improving the coverage, the number of carbon atoms in R is 1 or more, preferably 5 or more, more preferably 10 or more, and 18 or less, preferably 16 or less, more preferably 14 or less. 4 R may be linear or branched. 4 is preferably a branched alkyl group from the viewpoint of improving the coverage.

[0039] Specific examples of the compound (A5) include methyl palmitate, methyl stearate, ethyl palmitate, ethyl stearate, isopropyl palmitate, isopropyl stearate, n-butyl palmitate, n-butyl stearate, isobutyl palmitate, isobutyl stearate, t-butyl palmitate, t-butyl stearate, n-octyl palmitate, n-octyl stearate, 2-ethylhexyl palmitate, and 2-ethyl stearate. Examples of the hydroxypropyl ester include hexyl hexyl palmitate, decyl stearate, dodecyl palmitate, dodecyl stearate, isotridecyl palmitate, isotridecyl stearate, hexadecyl palmitate, hexadecyl stearate, 2-hexyldecyl palmitate, 2-hexyldecyl stearate, and stearyl stearate. From the viewpoint of improving the coverage, isopropyl palmitate, isopropyl stearate, isobutyl palmitate, and stearyl stearate are preferred. Isobutyl phosphate, t-butyl palmitate, t-butyl stearate, 2-ethylhexyl palmitate, 2-ethylhexyl stearate, decyl palmitate, decyl stearate, dodecyl palmitate, dodecyl stearate, isotridecyl palmitate, isotridecyl stearate, hexadecyl palmitate, hexadecyl stearate, 2-hexyldecyl palmitate, and 2-hexyldecyl stearate are more preferred. Preferred are 2-ethylhexyl stearate, 2-ethylhexyl stearate, decyl palmitate, decyl stearate, dodecyl palmitate, dodecyl stearate, isotridecyl palmitate, isotridecyl stearate, 2-hexyldecyl palmitate, and 2-hexyldecyl stearate, more preferred are dodecyl stearate, isotridecyl stearate, and 2-hexyldecyl stearate, and even more preferred isotridecyl stearate.

[0040] [Compound (A6)] The compound (A6) of the present invention is a compound represented by the following formula (IV). R 5 -COOH (IV) [In formula (IV), R 5is an alkyl group having 7 to 19 carbon atoms or an alkenyl group having 7 to 19 carbon atoms.

[0041] In formula (IV), R 5 is an alkyl group having 7 to 19 carbon atoms or an alkenyl group having 7 to 19 carbon atoms. 5 From the viewpoint of improving the coverage, the number of carbon atoms in R is 7 or more, preferably 8 or more, more preferably 9 or more, and 19 or less, preferably 17 or less, more preferably 15 or less. 5 R may be linear or branched. 5 From the viewpoint of improving the coverage, is preferably a linear or branched alkyl group, and more preferably a linear alkyl group.

[0042] Specific examples of the compound (A6) include caprylic acid, capric acid, lauric acid, myristic acid, palmitic acid, stearic acid, and oleic acid. From the viewpoint of improving the coverage, preferred are capric acid and oleic acid, and more preferred is capric acid.

[0043] The evaporation inhibitor for plant treatment agents of the present invention may consist of at least one compound selected from the group consisting of compounds (A1), (A2), (A3), (A4-1), (A4-2), (A5), and (A6). Component (A) is preferably at least one compound selected from the group consisting of compounds (A2), (A3), (A4-1), (A4-2), and (A6), more preferably at least one compound selected from the group consisting of compounds (A3), (A4-1), and (A6), and even more preferably any one of compounds (A3) and (A6).

[0044] The evaporation inhibitor for plant treatment agents of the present invention contains an evaporation inhibitor for plant treatment agents in which the component (A) is the compound (A1), that is, an evaporation inhibitor for plant treatment agents consisting of the compound (A1). The evaporation inhibitor for plant treatment agents of the present invention contains an evaporation inhibitor for plant treatment agents in which the component (A) is the compound (A2), that is, an evaporation inhibitor for plant treatment agents consisting of the compound (A2). The evaporation inhibitor for plant treatment agents of the present invention contains an evaporation inhibitor for plant treatment agents in which the component (A) is the compound (A3), that is, an evaporation inhibitor for plant treatment agents consisting of the compound (A3). The evaporation inhibitor for plant treatment agents of the present invention contains an evaporation inhibitor for plant treatment agents in which the component (A) is the compound (A4), that is, the evaporation inhibitor comprises the compound (A4). The evaporation inhibitor for plant treatment agents of the present invention contains an evaporation inhibitor for plant treatment agents in which the component (A) is the compound (A5), that is, the evaporation inhibitor comprises the compound (A5). The evaporation inhibitor for plant treatment agents of the present invention contains an evaporation inhibitor for plant treatment agents in which the component (A) is the compound (A6), that is, an evaporation inhibitor for plant treatment agents consisting of the compound (A6).

[0045] The evaporation inhibitor for plant treatment agents of the present invention is preferably used by blending it with a treatment solution to be applied to plants. The concentration of component (A) in the evaporation inhibitor for plant treatment agents of the present invention when used is preferably 30 mg / kg or more, more preferably 50 mg / kg or more, even more preferably 70 mg / kg or more, still more preferably 100 mg / kg or more, and preferably 6000 mg / kg or less, more preferably 3000 mg / kg or less, even more preferably 2000 mg / kg or less, still more preferably 1000 mg / kg or less, still more preferably 500 mg / kg or less, and still more preferably 300 mg / kg or less, based on the treatment solution to be applied to plants.

[0046] [Evaporation inhibitor composition for plant treatment agents] The present invention provides an evaporation inhibitor composition for plant treatment agents containing the evaporation inhibitor for plant treatment agents of the present invention. That is, the present invention provides an evaporation inhibitor composition for plant treatment agents containing component (A). The evaporation inhibitor composition for plant treatment agents of the present invention contains component (A) as an active ingredient for inhibiting the evaporation of plant treatment agents such as pesticides. The evaporation inhibitor composition for plant treatment agents of the present invention can be appropriately applied to the evaporation inhibitor composition for plant treatment agents of the present invention. Specific examples and preferred embodiments of component (A) are also the same as those of the evaporation inhibitor for plant treatment agents of the present invention. The evaporation inhibitor composition for plant treatment agents of the present invention can contain components other than component (A). Examples of components other than component (A) include water as a solvent or dispersion medium, organic solvents such as ethanol, ethyl lactate, and dimethyl sulfoxide, chelating agents, pH adjusters, inorganic salts, thickeners, and antifoaming agents. The evaporation inhibitor composition for plant treatment agents of the present invention can also contain components (B) and (C), which will be described later.

[0047] The evaporation inhibitor composition for plant treatment agents of the present invention can contain water as a solvent or dispersion medium. When the evaporation inhibitor composition for plant treatment agents of the present invention contains water, dispersion and dissolution of component (A) and any optional components in a dilution medium (e.g., water and / or an organic solvent) during dilution of the composition becomes easier, which facilitates the process of diluting the composition with a dilution medium to prepare a treatment solution when the composition is applied together with a plant treatment agent such as a pesticide.

[0048] The evaporation inhibitor composition for plant treatment agents of the present invention preferably contains component (A) at a concentration of 30 mg / kg or more and 6000 mg / kg or less when used, i.e., when applied to plants together with a plant treatment agent such as a pesticide. The evaporation inhibitor composition for plant treatment agents of the present invention is preferably incorporated into a treatment solution to be applied to plants. The evaporation inhibitor composition for plant treatment agents of the present invention has a concentration of component (A) at the time of use, based on the treatment solution to be applied to plants, of preferably 30 mg / kg or more, more preferably 50 mg / kg or more, even more preferably 70 mg / kg or more, even more preferably 100 mg / kg or more, and preferably 6000 mg / kg or less, more preferably 3000 mg / kg or less, even more preferably 2000 mg / kg or less, even more preferably 1000 mg / kg or less, even more preferably 500 mg / kg or less, and even more preferably 300 mg / kg or less. The content of component (A) in the evaporation inhibitor composition for plant treatment agents of the present invention may be adjusted to fall within this range. The content of component (A) in the evaporation inhibitor composition for plant treatment agents of the present invention is preferably less than 100% by mass from the viewpoint of efficient transportation and storage, and more preferably 70% by mass or less, even more preferably 50% by mass or less, and even more preferably 20% by mass or less from the viewpoint of stability when optional components are contained. Furthermore, from the viewpoint of ease of workability and concentration adjustment when mixing with plant treatment agents such as pesticides, the content is preferably 10% by mass or less, more preferably 5% by mass or less, and even more preferably 3% by mass or less. Furthermore, from the viewpoint of improving coverage, the content is preferably 0.005% by mass or more, more preferably 0.01% by mass or more, even more preferably 0.05% by mass or more, and even more preferably 0.1% by mass or more.

[0049] [Pesticide efficacy enhancer composition] The present invention provides a pesticide efficacy potentiator composition containing the evaporation inhibitor for plant treatment agents of the present invention and (B) a pesticide efficacy potentiator other than component (A). That is, the present invention provides a pesticide efficacy potentiator composition containing component (A) and (B) a pesticide efficacy potentiator other than component (A) [hereinafter referred to as component (B)]. The pesticide efficacy potentiator composition of the present invention contains component (A) as a evaporation inhibitor for plant treatment agents. The matters described for the evaporation inhibitor for plant treatment agents and the evaporation inhibitor composition for plant treatment agents of the present invention can be applied as appropriate to the pesticide efficacy enhancer composition of the present invention. Specific examples and preferred embodiments of component (A) are the same as those for the evaporation inhibitor for plant treatment agents of the present invention.

[0050] The content of component (A) in the pesticide efficacy enhancer composition of the present invention is preferably 80% by mass or less, more preferably 50% by mass or less, even more preferably 30% by mass or less, and even more preferably 10% by mass or less, from the viewpoint of formulation stability. Furthermore, from the viewpoint of ease of workability and concentration adjustment when mixing with a plant treatment agent such as a pesticide, the content is preferably 10% by mass or less, more preferably 5% by mass or less, and even more preferably 3% by mass or less. Furthermore, from the viewpoint of improving coverage, the content is preferably 0.005% by mass or more, more preferably 0.01% by mass or more, even more preferably 0.05% by mass or more, and even more preferably 0.1% by mass or more.

[0051] The component (B) may be one or more selected from (B1) an emulsifier other than the component (A) [hereinafter referred to as the component (B1)] and (B2) a (poly)glycerin fatty acid ester [hereinafter referred to as the component (B2)]. The pesticide efficacy potentiator composition of the present invention includes a pesticide efficacy potentiator composition containing the component (B1) as the component (B). The pesticide efficacy potentiator composition of the present invention includes a pesticide efficacy potentiator composition containing the component (B2) as the component (B). The agricultural chemical efficacy enhancer composition of the present invention includes an agricultural chemical efficacy enhancer composition containing the component (B1) and the component (B2) as the component (B).

[0052] From the viewpoint of improving coverage, the pesticide efficacy enhancer composition of the present invention preferably contains an emulsifier (B1) as component (B). As component (B1), emulsifiers typically used in pesticide spraying, such as sodium dodecyl sulfate, ammonium dodecyl sulfate, sodium dodecylbenzenesulfonate, ammonium dodecylbenzenesulfonate, sodium alkyl ether sulfate, ammonium alkyl ether sulfate, polyoxyethylene distyrenated phenyl ether, polyoxyethylene tribenzyl phenyl ether, polyoxyethylene sorbitol tetraoleate, polyoxyethylene alkylamine, and quaternary ammonium salts, can be used. From the viewpoint of improving coverage, component (B1) is preferably at least one compound selected from the group consisting of compounds represented by the following formula (V) and compounds represented by the following formula (VI): R 6 O(R 8 O) n SO3 - M + (V) R 7 SO3 - M + (VI) (In formulas (V) and (VI), R 6 and R 7 are each independently a hydrocarbon group having 8 to 24 carbon atoms, R 8 is an alkylene group having 2 to 4 carbon atoms, n is the average number of moles added and is a number of 0 to 30, and M + is the counterion.)

[0053] In formulas (V) and (VI), R 6 and R 7 is preferably an aliphatic hydrocarbon group, more preferably an alkyl group, and even more preferably a linear alkyl group. 6 and R 7 From the viewpoint of improving the coverage, the number of carbon atoms is 8 or more, preferably 10 or more, more preferably 12 or more, and from the same viewpoint, it is 24 or less, preferably 16 or less, more preferably 14 or less. In formula (V), R 8From the viewpoint of improving the coverage, the number of carbon atoms in R is preferably 2 or more and 3 or less, more preferably 2. 8 is preferably an ethylene group. In formula (V), n is a number of 0 or more, preferably 1 or more, more preferably 2 or more, from the viewpoint of improving the coverage, and from the same viewpoint, is a number of 30 or less, preferably 10 or less, more preferably 5 or less, and even more preferably 3 or less. In formulas (V) and (VI), M + is a counter ion, and examples thereof include ions of alkali metals such as sodium and potassium, ammonium ions, and triethanolammonium ions. From the viewpoint of improving the coverage, an alkali metal ion or an ammonium ion is preferred, and an ammonium ion is more preferred.

[0054] When the pesticide efficacy enhancer composition of the present invention contains the component (B1), the composition contains the component (B1) in an amount of preferably 0.05% by mass or more, more preferably 0.1% by mass or more, even more preferably 0.5% by mass or more, and preferably 30% by mass or less, more preferably 20% by mass or less, and even more preferably 10% by mass or less, from the viewpoint of improving the coverage rate and enhancing the efficacy of the pesticide.

[0055] From the viewpoint of improving coverage, the pesticide efficacy enhancer composition of the present invention preferably contains a (poly)glycerin fatty acid ester of component (B2) as component (B). Component (B2) is preferably a (poly)glycerin fatty acid ester in which the number of carbon atoms in the fatty acid is from 8 to 16 and the average degree of condensation of glycerin is from 1 to 3. Here, "(poly)glycerin" means "glycerin or polyglycerin."

[0056] In component (B2), the number of carbon atoms in the fatty acid is 8 or more, preferably 10 or more, and 16 or less, preferably 14 or less, more preferably 12 or less, and even more preferably 10, from the viewpoint of improving the coverage. The fatty acid in component (B2) preferably has a linear or branched alkyl group or a linear or branched alkenyl group, and more preferably has a linear alkyl group. Examples of fatty acids in component (B2) include caprylic acid, capric acid, lauric acid, myristic acid, and palmitic acid. From the viewpoint of improving the coverage, capric acid and lauric acid are preferred, and capric acid is more preferred. In component (B2), the average degree of condensation of glycerin is 1 or more and 3 or less, preferably 2 or less, and more preferably 2, from the viewpoint of improving the coverage. Furthermore, in component (B2), the ester bond is preferably a monoester or a diester, and more preferably a monoester.

[0057] When the pesticide efficacy enhancer composition of the present invention contains the component (B2), the composition contains the component (B2) in an amount of preferably 5% by mass or more, more preferably 10% by mass or more, even more preferably 20% by mass or more, and preferably 60% by mass or less, more preferably 50% by mass or less, even more preferably 40% by mass or less, from the viewpoint of improving the coverage rate and enhancing the efficacy of the pesticide.

[0058] Examples of pesticide efficacy enhancers other than the components (B1) and (B2) [hereinafter referred to as the component (B3)] include, but are not limited to, the wetting agents listed in the 2011 edition of the Pesticide Handbook (published by the Japan Plant Protection Association on February 25, 2011). Examples of commercially available spreading agents include Makupika (93.0% by mass of polyoxyethylene methylpolysiloxane, manufactured by Ishihara Biosciences Co., Ltd.), Squash (70% by mass of sorbitan fatty acid ester, 5.5% by mass of polyoxyethylene resin acid ester, manufactured by Kao Corporation), Avion-E (24% by mass of paraffin, manufactured by Avion Co., Ltd.), Petane V (42.0% by mass of paraffin, manufactured by Agro Kanesho Co., Ltd.), Submerge (50% by mass of sodium alkylbenzene sulfonate, manufactured by Syngenta), and Breakthrough (80% by mass of polyoxyalkyleneoxypropylheptamethyltrisiloxane, 20% by mass of polyoxyalkylenepropenyl ether, manufactured by Sankei Chemical Co., Ltd.).

[0059] When the pesticide efficacy enhancer composition of the present invention contains the component (B3), the composition contains the component (B3) in an amount of preferably 99.995% by mass or less, more preferably 99.99% by mass or less, even more preferably 99.95% by mass or less, and even more preferably 99.9% by mass or less, from the viewpoint of improving the coverage rate, and preferably 20% by mass or more, more preferably 70% by mass or more, and even more preferably 90% by mass or more, from the viewpoint of enhancing the efficacy of the pesticide.

[0060] From the viewpoint of improving storage stability, the pesticide efficacy enhancer composition of the present invention preferably contains, as component (C), a compound having an SP value of 8 or more and 18 or less (excluding those corresponding to components (A) and (B)). The SP value of component (C) is preferably 8 or more, more preferably 8.4 or more, even more preferably 9.5 or more, and preferably 18 or less, more preferably 16 or less, even more preferably 14 or less. The SP value is a solubility parameter. In the present invention, the SP value is a value determined by the Hoy method (unit: (cal / cm 3 ) 1 / 2From the viewpoint of suppressing low-temperature precipitation of other components, component (C) is preferably one or more compounds selected from ester compounds having 5 or less carbon atoms, dimethyl sulfoxide, and alcohols having from 1 to 10 carbon atoms. Among the (C) components, examples of ester compounds having 5 or less carbon atoms include ethyl acetate (SP value 8.1), ethyl lactate (SP value 9.7), methyl acetate (SP value 8.4), methyl lactate (SP value 10.2), ethyl propionate (SP value 8.3), and methyl propionate (SP value 8.3). The SP value of dimethyl sulfoxide is 13.0. Among the (C) components, examples of alcohols having 1 to 10 carbon atoms include ethanol (SP value 12.7), propyl alcohol (SP value 12.0), n-butanol (SP value 11.4), 2-ethylhexanol (SP value 9.5), n-decanol (SP value 9.8), glycerin (SP value 17.7), and ethylene glycol (SP value 14.2). From the viewpoint of suppressing low-temperature precipitation of other components, component (C) is preferably one or more compounds selected from ethyl lactate, dimethyl sulfoxide, propyl alcohol, and n-decanol. When the pesticide efficacy enhancer composition of the present invention contains component (C), the composition contains component (C) in an amount of preferably 0.5% by mass or more, more preferably 1% by mass or more, even more preferably 5% by mass or more, and preferably 80% by mass or less, more preferably 70% by mass or less, even more preferably 50% by mass or less, from the viewpoint of suppressing low-temperature precipitation of other components.

[0061] The pesticide efficacy enhancer composition of the present invention may contain water as a solvent or dispersion medium, and components such as a chelating agent, a pH adjuster, inorganic salts, a thickener, and an antifoaming agent (excluding those corresponding to component (A), component (B), and component (C)).

[0062] The pesticide efficacy enhancer composition of the present invention can contain water as a solvent or dispersion medium. When the pesticide efficacy enhancer composition of the present invention contains water, dispersion and dissolution of component (A) and optional components (component (B) and component (C)) in a dilution medium (e.g., water and / or an organic solvent) are facilitated when the composition is diluted, thereby facilitating the step of diluting the composition with a dilution medium to prepare a treatment solution when spraying the composition together with a pesticide.

[0063] The pesticide efficacy enhancer composition of the present invention preferably contains component (A) at a concentration of 30 mg / kg or more and 6000 mg / kg or less when used, i.e., when applied to plants together with a plant treatment agent such as a pesticide. The pesticide efficacy enhancer composition of the present invention is preferably incorporated into a treatment solution to be applied to plants. The pesticide efficacy enhancer composition of the present invention has a concentration of component (A) at the time of use, based on the treatment solution to be applied to plants, of preferably 30 mg / kg or more, more preferably 50 mg / kg or more, even more preferably 70 mg / kg or more, even more preferably 100 mg / kg or more, and preferably 6000 mg / kg or less, more preferably 3000 mg / kg or less, even more preferably 2000 mg / kg or less, even more preferably 1000 mg / kg or less, even more preferably 500 mg / kg or less, and even more preferably 300 mg / kg or less. The content of component (A) in the pesticide efficacy enhancer composition of the present invention may be adjusted to fall within this range. The content of component (A) in the pesticide efficacy enhancer composition of the present invention is preferably less than 100% by mass from the viewpoint of efficient transportation and storage, and more preferably 70% by mass or less, even more preferably 50% by mass or less, and even more preferably 20% by mass or less from the viewpoint of stability when used in combination with optional components such as components (B) and (C). Furthermore, from the viewpoint of ease of workability and concentration adjustment when mixed with a plant treatment agent such as a pesticide, the content is preferably 10% by mass or less, more preferably 5% by mass or less, and even more preferably 3% by mass or less. Furthermore, from the viewpoint of improving coverage, the content is preferably 0.005% by mass or more, more preferably 0.01% by mass or more, even more preferably 0.05% by mass or more, and even more preferably 0.1% by mass or more.

[0064] <Plant treatment composition> The present invention relates to a plant treatment composition containing the evaporation inhibitor for plant treatment agents of the present invention and a plant treatment agent. That is, the present invention provides a plant treatment composition containing component (A) and a plant treatment agent. The plant treatment composition of the present invention contains component (A) as an evaporation inhibitor for plant treatment agents. The plant treatment composition of the present invention can be appropriately applied to the evaporation inhibitor for plant treatment agents, the evaporation inhibitor composition for plant treatment agents, and the pesticide efficacy enhancer composition of the present invention. For example, specific examples of component (A), preferred embodiments, optional ingredients, etc. are the same as those for the evaporation inhibitor for plant treatment agents of the present invention.

[0065] The plant treatment agent used in the plant treatment composition of the present invention includes components selected from pesticides, fertilizers, and preservatives.

[0066] The pesticide used in the plant treatment composition of the present invention may be either an active ingredient of the pesticide or a pesticide formulation containing the active ingredient of the pesticide.

[0067] The agricultural chemicals include at least one selected from fungicides, insecticides, miticides, herbicides and plant growth regulators. Agricultural chemicals are compounds that are the active ingredients of agricultural chemicals. Examples of agricultural chemicals used in agricultural chemicals include, but are not limited to, those listed in the 2011 edition of the Pesticide Handbook (published by the Japan Plant Protection Association on February 25, 2011).

[0068] Examples of fungicides include those described in International Publication No. 2012 / 029893. From the viewpoint of improving the coverage rate and enhancing the efficacy of agricultural chemicals according to the present invention (hereinafter also referred to as the efficacy enhancement effect according to the present invention), preferred fungicides include basic copper sulfate, organic copper (oxine copper, bis(8-quinolinolato)copper(II)), cupric hydroxide, benomyl (N-[1-(Nn-butylcarbamoyl)-1H-2-benzimidazolyl]methylcarbamate), kasugamycin (3-o-[2-amino-4-[(carboxyiminomethyl)amino]-2,3,4,6-tetradeoxy-α-methyl-2-methyl-4 ... -D-arabino-hexopyranosyl]-D-chiro-inositol hydrochloride hydrate), tricyclazole (5-methyl-1,2,4-triazolo[3,4-b][1,3]benzothiazole), tetraconazole ((RS)-2-(2,4-dichlorophenyl)-3-(1H-1,2,4-triazol-1-yl)propyl 1,1,2,2-tetrafluoroethyl ether), tebuconazole ((RS)-1-p-chlorophenyl-4,4-dimethyl-3- (1H-1,2,4-triazol-1-ylmethyl)pentan-3-ol), propiconazole ((2RS,4RS;2RS,4SR)-1-[2-(2,4-dichlorophenyl)-4-propyl-1,3-dioxolan-2-ylmethyl]-1H-1,2,4-triazole), ferimzone ((Z)-2'-methylacetophenone 4,6-dimethylpyrimidin-2-ylhydrazone), fthalide (4,5,6,7-tetrachlorophthalide), thiophanate methyl (dimethyl more preferred are basic copper sulfate, benomyl, ferimzone, fthalide, iminoctadine acetate, and flutolanil, and even more preferred are ferimzone, fthalide, iminoctadine acetate, and flutolanil.

[0069] Examples of insecticides include those described in WO 2012 / 029893. As the insecticide, from the viewpoint of the efficacy enhancing effect according to the present invention, preferred are permethrin (3-phenoxybenzyl 3-(2,2-dichlorovinyl)-2,2-dimethylcyclopropanecarboxylate), dichlorvos (dimethyl 2,2-dichlorovinyl phosphate (DDVP)), methomyl (S-methyl-N-[(methylcarbamoyl)-oxy]-thioacetimidate), ethiprole (5-amino-1-(2,6-dichloro-α,α,α-trifluoro-p-tolyl)-4-ethylsulfinylpyrazole-3-carbonitrile), etofenprox (2-(4-ethoxyphenyl)-2-methylpropyl 3-phenoxybenzyl ether), fenitrothion (o,o-dimethyl o-4-nitro-m-tolyl phosphorothioate), acephate (O,S-dimethyl acetyl phosphoramidothioate), clothianidin ((E)-1-(2-chloro-1,3-thiazol-5-ylmethyl)-3-methyl-2-nitroguanidine), dinotefuran ((RS)-1-methyl-2-nitro-3-(tetrahydro-3-furylmethyl)guanidine), chlorantraniliprole (3-bromo-N-[4-chloro-2-methyl-6-(methylcarbamoyl)phenyl]-1-(3-chloropyridin-2-yl)-1H-pyrazole-5-carboxamide), more preferably acephate, clothianidin, dinotefuran, and chlorantraniliprole, and even more preferably clothianidin, dinotefuran, and chlorantraniliprole.

[0070] Examples of acaricides include those described in International Publication No. 2012 / 029893. From the viewpoint of the efficacy enhancement effect of the present invention, preferred acaricides are phenisobromorate (isopropyl 4,4'-dibromobenzilate), amitraz (1,5-bis(2,4-dimethylphenyl)-3-methyl-1,3,5-triazapenta-1,4-diene), and fenpyroximate (t-butyl(E)-α-(1,3-dimethyl-5-phenoxypyrazol-4-ylmethyleneaminooxy)-p-toluate).

[0071] Examples of herbicides include those described in International Publication No. 2012 / 029893. From the viewpoint of the efficacy enhancement effect of the present invention, preferred herbicides include DBN (2,6-dichlorobenzonitrile), diuron (DCMU, 3-(3,4-dichlorophenyl)-1,1-dimethylurea), paraquat (1,1'-dimethyl-4,4'-bipyridium dichloride), diquat (1,1'-ethylene-2,2'-bipyridinium dibromide), glufosinate (ammonium-DL-homoalanin-4-yl(methyl)phosphinate), and glyphosate (N-(phosphonomethyl)-glycine or a salt thereof), more preferably glyphosate. Examples of glyphosate include the isopropylamine salt, ammonium salt, potassium salt, sodium salt, and trimesium salt, with the isopropylamine salt being preferred.

[0072] The plant treatment composition of the present invention can contain a pesticide potentiator or a pesticide potentiator composition, for example, the pesticide potentiator composition of the present invention. When the plant treatment composition of the present invention contains a pesticide as a plant treatment agent, it preferably contains a pesticide potentiator. Specific examples and preferred embodiments of the pesticide potentiator are the same as those of the pesticide potentiator composition of the present invention.

[0073] The plant treatment composition of the present invention may contain the optional components described in the pesticide efficacy enhancer composition. For example, the plant treatment composition of the present invention may contain a component selected from the aforementioned components (B) and (C). Specific examples and preferred aspects of these optional components are the same as those of the pesticide efficacy enhancer composition of the present invention.

[0074] The plant treatment composition of the present invention can contain water. The plant treatment composition of the present invention may be, for example, a composition in which component (A) and a plant treatment agent, such as a pesticide, are dissolved or dispersed in water. The water content of the plant treatment composition of the present invention is not particularly limited, but is preferably 1% by mass or more, more preferably 10% by mass or more, and preferably 98% by mass or less, more preferably 95% by mass or less.

[0075] The plant treatment agent composition of the present invention includes an evaporation inhibitor for plant treatment agents of the present invention, that is, an agrochemical composition containing component (A) and an agrochemical.

[0076] The plant treatment composition of the present invention preferably contains 30 mg / kg or more and 6000 mg / kg or less of component (A) when used, i.e., when applied to plants. From the viewpoint of improving coverage, the content of component (A) in the plant treatment composition of the present invention when used is preferably 30 mg / kg or more and 6000 mg / kg or less, more preferably 50 mg / kg or more, even more preferably 70 mg / kg or more, still more preferably 100 mg / kg or more, and more preferably 3000 mg / kg or less, even more preferably 2000 mg / kg or less, still more preferably 1000 mg / kg or less, still more preferably 500 mg / kg or less, and still more preferably 300 mg / kg or less. The content of component (A) in the plant treatment composition of the present invention may be any amount that allows the content of component (A) when used to be adjusted within this range. The content of component (A) in the plant treatment composition of the present invention is not particularly limited, but from the viewpoint of improving coverage and enhancing the efficacy of the plant treatment agent such as a pesticide, for example, it is preferably 0.001% by mass or more, more preferably 0.01% by mass or more, even more preferably 0.05% by mass or more, still more preferably 0.1% by mass or more, and preferably 30% by mass or less, more preferably 15% by mass or less, even more preferably 10% by mass or less, and still more preferably 4% by mass or less, of the plant treatment agent such as a pesticide (converted to active ingredient). When the plant treatment composition of the present invention is a pesticide composition, the content of the pesticide in the composition may be an amount that can provide the concentration set for the pesticide during general use.

[0077] When the plant treatment composition of the present invention contains component (B1) as component (B), the content of component (B1) in the plant treatment composition of the present invention at the time of use is not particularly limited, but from the viewpoint of improving coverage and enhancing the efficacy of plant treatment agents such as pesticides, it is preferably 10 mg / kg or more and 5000 mg / kg or less, more preferably 30 mg / kg or more, even more preferably 50 mg / kg or more, still more preferably 100 mg / kg or more, more preferably 3000 mg / kg or less, even more preferably 2000 mg / kg or less, and still more preferably 1000 mg / kg or less. The content of component (B1) in the plant treatment composition of the present invention may be any amount that allows the content of component (B1) at the time of use to be adjusted within this range.

[0078] When the plant treatment composition of the present invention contains component (B2) as component (B), the content of component (B2) in the plant treatment composition of the present invention at the time of use is not particularly limited, but from the viewpoint of improving coverage and enhancing the efficacy of plant treatment agents such as pesticides, it is preferably 50 mg / kg or more and 20,000 mg / kg or less, more preferably 500 mg / kg or more, even more preferably 1,000 mg / kg or more, still more preferably 3,000 mg / kg or more, more preferably 10,000 mg / kg or less, even more preferably 8,000 mg / kg or less, and still more preferably 6,000 mg / kg or less. The content of component (B2) in the plant treatment composition of the present invention may be any amount that allows the content of component (B2) at the time of use to be adjusted within this range.

[0079] When the plant treatment composition of the present invention contains the component (B3) as the component (B), the content of the component (B3) in the plant treatment composition of the present invention at the time of use is not particularly limited, but from the viewpoint of improving coverage and enhancing the efficacy of the pesticide, it is preferably 500 mg / kg or more and 50,000 mg / kg or less, more preferably 1,000 mg / kg or more, even more preferably 5,000 mg / kg or more, still more preferably 10,000 mg / kg or more, more preferably 30,000 mg / kg or less, even more preferably 25,000 mg / kg or less, and still more preferably 20,000 mg / kg or less. The content of the component (B3) in the plant treatment composition of the present invention may be any amount that allows the content of the component (B3) at the time of use to be adjusted within this range.

[0080] [Plant processing method] The present invention provides a method for treating plants, comprising the step of applying to plants a treatment solution containing the evaporation inhibitor for use in plant treatment agents of the present invention and a plant treatment agent (hereinafter also referred to as the treatment solution of the present invention). The plant treatment method of the present invention comprises the step of applying to plants a treatment solution containing at least one compound selected from the compounds (A1) to (A6) as component (A) and a plant treatment agent. The treatment solution of the present invention preferably contains water. For example, the plant treatment method of the present invention may be a method for treating plants comprising the step of applying to plants a treatment solution containing component (A), a plant treatment agent, and water. The evaporation inhibitor for plant treatment agents, evaporation inhibitor composition for plant treatment agents, pesticide efficacy enhancer composition, and plant treatment agent composition of the present invention can be applied as appropriate to the plant treatment method of the present invention. For example, specific examples, preferred embodiments, optional ingredients, etc. of component (A) are the same as those of the evaporation inhibitor for plant treatment agents of the present invention.

[0081] The treatment solution used in the plant treatment method of the present invention can be an evaporation inhibitor composition for plant treatment agents, an agricultural chemical efficacy enhancer composition, or a plant treatment agent composition, as is. That is, if the content of component (A) in these compositions is suitable for application to plants, they may be used as is. Alternatively, a diluted solution obtained by diluting the composition with water can be used as the treatment solution of the present invention. For example, the treatment solution of the present invention may be the plant treatment agent composition of the present invention or a diluted solution obtained by diluting the composition with water. Alternatively, the treatment solution of the present invention may be obtained by separately mixing component (A), the plant treatment agent, and optional components, as necessary.

[0082] The treatment solution of the present invention to be applied to plants preferably contains 30 mg / kg or more and 6000 mg / kg or less of component (A). From the viewpoint of improving coverage, the content of component (A) is preferably 30 mg / kg or more and 6000 mg / kg or less, more preferably 50 mg / kg or more, even more preferably 70 mg / kg or more, still more preferably 100 mg / kg or more, and more preferably 3000 mg / kg or less, even more preferably 2000 mg / kg or less, still more preferably 1000 mg / kg or less, still more preferably 500 mg / kg or less, and still more preferably 300 mg / kg or less.

[0083] The treatment solution of the present invention may contain the aforementioned component (B) and / or component (C). In such cases, the content of each component in the treatment solution of the present invention is preferably the content or content at the time of use described for the plant treatment composition of the present invention.

[0084] In the present invention, the treatment solution of the present invention can be applied to plants by spraying. Spraying can be performed using conventional spraying devices and methods used for spraying pesticides, etc., but aerial spraying is preferred from the viewpoint of low spray volume and efficient spraying. Aerial spraying is preferably performed using an aircraft equipped with a spraying device, or even an industrial multi-rotor (drone). For example, the present invention also provides a method for spraying a plant treatment composition, e.g., a pesticide composition, of the present invention, in which the plant treatment composition, e.g., a pesticide composition, is sprayed at the ratio described below.

[0085] When spraying the treatment solution of the present invention, there are no particular limitations on the spraying device used, and conventional spraying devices can be used. Spraying devices are classified by power type, such as human-powered or powered, and powered types are classified into backpack, portable, traveling, and flying types, and any of these spraying devices can be used. Specific examples include manual sprayers, backpack sprayers, set sprayers, carry-on sprayers, self-propelled carry-on sprayers, self-propelled radio-controlled sprayers, speed sprayers, boom sprayers, industrial unmanned helicopters, and industrial multi-rotors (drones). From the viewpoint of demonstrating the advantageous effects of the present invention, industrial unmanned helicopters and industrial multi-rotors are preferred as spraying devices, with industrial multi-rotors being more preferred.

[0086] In the present invention, the treatment solution of the present invention is used in an amount of 10 a (1000 m 2 The amount of spraying is preferably 0.1 L or more, more preferably 0.5 L or more, even more preferably 0.6 L or more, even more preferably 0.7 L or more, even more preferably 0.8 L or more, and preferably 500 L or less, more preferably 200 L or less, even more preferably 50 L or less, and even more preferably 10 L or less. If the amount of spraying is equal to or greater than the lower limit, a sufficient effect of improving coverage can be obtained, and if it is equal to or less than the upper limit, the impact on the environment can be kept low. This amount of spraying is preferred when the content of component (A) in the spray solution, which is the treatment solution applied to plants, is within the above-mentioned range.

[0087] Plants that are the subject of the present invention include agricultural crops. Examples of agricultural crops include barley, peas, rice, wheat, cabbage, taro, potato, onion, corn, strawberry, melon, eggplant, tomato, leek, rapeseed, soybean, kidney bean, sweet potato, cucumber, Chinese cabbage, apple, pear, peach, persimmon, and citrus. In addition to these, the present invention can also be applied to plants such as trees and grass. Furthermore, the present invention can be applied to harmful plants such as so-called weeds.

[0088] In the plant treatment method of the present invention, when the plant is an agricultural crop, the treatment solution of the present invention is preferably applied to the agricultural crop before harvest. That is, the treatment method of the present invention includes, for example, a method of treating agricultural crops comprising a step of applying the treatment solution of the present invention to the agricultural crop before harvest.

[0089] In the present invention, from the viewpoint of exerting the effects of the present invention, it is preferable to bring the treatment solution of the present invention into contact with a part of a plant where the contact angle with water is 50° or more and 180° or less, more preferably 70° or more and 180° or less, and even more preferably 90° or more and 180° or less. The contact angle of a plant with water can be measured by the following method. At 25°C, 5 μL of water is dropped onto the surface of the plant (for example, the surface of the third leaf), and after 10 seconds, a photograph is taken from the side of the water droplet using a digital microscope ("VHX-1000", manufactured by Keyence Corporation), and the contact angle is determined from the photographed image using the θ / 2 method.

[0090] [Aspects of the present invention] In relation to the above-described embodiments, the present invention further discloses the following evaporation inhibitors for plant treatment agents, evaporation inhibitor compositions for plant treatment agents, pesticide efficacy enhancer compositions, plant treatment agent compositions, and plant treatment methods. The details of the evaporation inhibitors for plant treatment agents, evaporation inhibitor compositions for plant treatment agents, pesticide efficacy enhancer compositions, plant treatment agent compositions, and plant treatment methods of the present invention can be mutually applied, as appropriate, to these aspects.

[0091] <1> (A) An evaporation inhibitor for plant treatment agents, comprising at least one compound selected from the following compounds (A1) to (A6) [hereinafter referred to as component (A)]. <Compound (A1)> A compound in which at least one alkylene oxide (hereinafter referred to as AO) selected from ethylene oxide (hereinafter referred to as EO) and propylene oxide (hereinafter referred to as PO) is added to a compound of the following formula (I) in an average addition mole number of 1 to 22: R 1 OH (I) [In formula (I), R 1is an alkyl group having 10 to 14 carbon atoms or an alkenyl group having 10 to 14 carbon atoms. <Compound (A2)> A compound in which at least one AO selected from EO and PO is added to a compound of the following formula (II) in an average molar number of 1 to 22: R 2 -COOH (II) [In formula (II), R 2 is an alkyl group having 11 to 19 carbon atoms or an alkenyl group having 11 to 19 carbon atoms. <Compound (A3)> A compound in which at least one AO selected from EO and PO is added to a monoester of a fatty acid having 10 to 20 carbon atoms and sorbitan with an average addition mole number of 1 to 22. <Compound (A4)> Polyalkylene glycol with a weight-average molecular weight of 100 to 3000 <Compound (A5)> A compound represented by the following formula (III): R 3 -COO-R 4 (III) [In formula (III), R 3 is an alkyl group having 15 to 19 carbon atoms, R 4 is an alkyl group having 1 to 18 carbon atoms. <Compound (A6)> A compound represented by the following formula (IV): R 5 -COOH (IV) [In formula (IV), R 5 is an alkyl group having 7 to 19 carbon atoms or an alkenyl group having 7 to 19 carbon atoms.

[0092] <2> AO of the compound (A1) includes EO; <1> The evaporation inhibitor for use in plant treatment agents according to claim 1.

[0093] <3> The average number of moles of AO added in compound (A1) is 1 or more, preferably 2 or more, more preferably 3 or more, even more preferably 4 or more, still more preferably 5 or more, and is 22 or less, preferably 20 or less, more preferably 18 or less, even more preferably 15 or less. <1> or <2> The evaporation inhibitor for use in plant treatment agents according to claim 1.

[0094] <4> In the formula (I) of the compound (A1), R 1 has 10 or more, preferably 11 or more, and 14 or less, preferably 13 or less, more preferably 12 carbon atoms; <1> ~ <3> The evaporation inhibitor for use in plant treatment agents according to any one of the preceding claims.

[0095] <5> In the formula (I) of the compound (A1), R 1 is a linear or branched chain alkyl group, preferably a linear or branched chain alkyl group, more preferably a linear chain alkyl group; <1> ~ <4> The evaporation inhibitor for use in plant treatment agents according to any one of the preceding claims.

[0096] <6> The compound (A1) is preferably polyoxyethylene (1 or more and 22 or less) dodecyl ether, more preferably polyoxyethylene (5 or more and 12 or less) dodecyl ether, and even more preferably polyoxyethylene (6) dodecyl ether. <1> ~ <5> The evaporation inhibitor for use in plant treatment agents according to any one of the preceding claims.

[0097] <7> AO of the compound (A2) includes EO; <1> ~ <6> The evaporation inhibitor for use in plant treatment agents according to any one of the preceding claims.

[0098] <8> The average number of moles of AO added in compound (A2) is 1 or more, preferably 2 or more, more preferably 3 or more, even more preferably 4 or more, still more preferably 5 or more, and is 22 or less, preferably 20 or less, more preferably 18 or less, even more preferably 15 or less. <1> ~ <7> The evaporation inhibitor for use in plant treatment agents according to any one of the preceding claims.

[0099] <9> In the formula (II) of the compound (A2), R 2 has 11 or more carbon atoms, preferably 13 or more carbon atoms, and more preferably 15 or more carbon atoms, and 19 or less carbon atoms, preferably 18 or less carbon atoms, and more preferably 17 or less carbon atoms. <1> ~ <8> The evaporation inhibitor for use in plant treatment agents according to any one of the preceding claims.

[0100] <10> In the formula (II) of the compound (A2), R 2 is a linear or branched chain, preferably a linear alkyl group or a linear alkenyl group, more preferably a linear alkenyl group; <1> ~ <9> The evaporation inhibitor for use in plant treatment agents according to any one of the preceding claims.

[0101] <11> the compound (A2) is a compound selected from polyoxyethylene (1 or more and 22 or less) laurate, polyoxyethylene (1 or more and 22 or less) myristate, polyoxyethylene (1 or more and 22 or less) palmitate, polyoxyethylene (1 or more and 22 or less) stearate, polyoxyethylene (1 or more and 22 or less) oleate, and compounds in which part or all of the oxyethylenes in these are substituted with oxypropylene, preferably polyoxyethylene (1 or more and 22 or less) oleate, more preferably polyoxyethylene (5 or more and 12 or less) oleate, and even more preferably polyoxyethylene (10) oleate; <1> ~ <10> The evaporation inhibitor for use in plant treatment agents according to any one of the preceding claims.

[0102] <12> AO of the compound (A3) contains EO; <1> ~ <11> The evaporation inhibitor for use in plant treatment agents according to any one of the preceding claims.

[0103] <13> The average number of moles of AO added in compound (A3) is 1 or more, preferably 2 or more, more preferably 3 or more, even more preferably 4 or more, still more preferably 5 or more, and is 22 or less, preferably 20 or less, more preferably 18 or less, even more preferably 15 or less. <1> ~ <12> The evaporation inhibitor for use in plant treatment agents according to any one of the preceding claims.

[0104] <14> The number of carbon atoms of the fatty acid that is a constituent of the compound (A3) is 10 or more, preferably 11 or more, more preferably 12 or more, and 20 or less, preferably 18 or less, more preferably 16 or less. <1> ~ <13> The evaporation inhibitor for use in plant treatment agents according to any one of the preceding claims.

[0105] <15> The fatty acid that is a component of compound (A3) is saturated or unsaturated, preferably a straight-chain saturated fatty acid or unsaturated fatty acid, more preferably a straight-chain saturated fatty acid. <1> ~ <14> The evaporation inhibitor for use in plant treatment agents according to any one of the preceding claims.

[0106] <16> The fatty acid that is a constituent of compound (A3) is a fatty acid selected from decanoic acid, dodecanoic acid, tetradecanoic acid, hexadecanoic acid, octadecanoic acid, eicosanoic acid, dodecenoic acid, tetradecenoic acid, hexadecenoic acid, oleic acid, linoleic acid, and linolenic acid, preferably dodecanoic acid, tetradecanoic acid, and oleic acid, more preferably dodecanoic acid. <1> ~ <15> The evaporation inhibitor for use in plant treatment agents according to any one of the preceding claims.

[0107] <17> the monoester of fatty acid and sorbitan, which is a constituent of compound (A3), is a compound selected from sorbitan monolaurate, sorbitan monomyristate, sorbitan monopalmitate, sorbitan monostearate, and sorbitan monooleate, preferably a compound selected from sorbitan monolaurate, sorbitan monomyristate, and sorbitan monooleate, more preferably sorbitan monolaurate; <1> ~ <16> The evaporation inhibitor for use in plant treatment agents according to any one of the preceding claims.

[0108] <18> the compound (A3) is a compound selected from polyoxyethylene (1 or more and 22 or less) sorbitan monolaurate, polyoxyethylene (1 or more and 22 or less) sorbitan monomyristate, polyoxyethylene (1 or more and 22 or less) sorbitan monopalmitate, polyoxyethylene (1 or more and 22 or less) sorbitan monostearate, polyoxyethylene (1 or more and 22 or less) sorbitan monooleate, and compounds in which part or all of the oxyethylene groups in these compounds have been substituted with oxypropylene, preferably polyoxyethylene (1 or more and 22 or less) sorbitan monolaurate, more preferably polyoxyethylene (5 or more and 12 or less) sorbitan monolaurate, and even more preferably polyoxyethylene (6) sorbitan monolaurate; <1> ~ <17> The evaporation inhibitor for use in plant treatment agents according to any one of the preceding claims.

[0109] <19> The weight average molecular weight of the compound (A4) is 100 or more, preferably 150 or more, more preferably 200 or more, and 3000 or less, preferably 2500 or less, more preferably 2000 or less. <1> ~ <18> The evaporation inhibitor for use in plant treatment agents according to any one of the preceding claims.

[0110] <20> The compound (A4) is a compound selected from the following compounds (A4-1) and (A4-2): <1> ~ <19> The evaporation inhibitor for use in plant treatment agents according to any one of the preceding claims. <Compound (A4-1)> Polyethylene glycol with a weight-average molecular weight of 100 to 3000 <Compound (A4-2)> Polypropylene glycol with a weight-average molecular weight of 800 to 3000

[0111] <21> In the formula (III) of the compound (A5), R 3 has 15 or more, preferably 16 or more, and 19 or less, preferably 18 or less, more preferably 17 carbon atoms; <1> ~ <20> The evaporation inhibitor for use in plant treatment agents according to any one of the preceding claims.

[0112] <22> In the formula (III) of the compound (A5), R 3 is a linear or branched, preferably linear, alkyl group; <1> ~ <21> The evaporation inhibitor for use in plant treatment agents according to any one of the preceding claims.

[0113] <23> Compound (A5) is a compound selected from methyl palmitate, methyl stearate, ethyl palmitate, ethyl stearate, isopropyl palmitate, isopropyl stearate, n-butyl palmitate, n-butyl stearate, isobutyl palmitate, isobutyl stearate, t-butyl palmitate, t-butyl stearate, n-octyl palmitate, n-octyl stearate, 2-ethylhexyl palmitate, 2-ethylhexyl stearate, decyl palmitate, decyl stearate, dodecyl palmitate, dodecyl stearate, isotridecyl palmitate, isotridecyl stearate, hexadecyl palmitate, hexadecyl stearate, 2-hexyldecyl palmitate, 2-hexyldecyl stearate, and stearyl stearate; Preferably, the compound is a compound selected from isopropyl palmitate, isopropyl stearate, isobutyl palmitate, isobutyl stearate, t-butyl palmitate, t-butyl stearate, 2-ethylhexyl palmitate, 2-ethylhexyl stearate, decyl palmitate, decyl stearate, dodecyl palmitate, dodecyl stearate, isotridecyl palmitate, isotridecyl stearate, hexadecyl palmitate, hexadecyl stearate, 2-hexyldecyl palmitate, and 2-hexyldecyl stearate. More preferably, it is a compound selected from 2-ethylhexyl palmitate, 2-ethylhexyl stearate, decyl palmitate, decyl stearate, dodecyl palmitate, dodecyl stearate, isotridecyl palmitate, isotridecyl stearate, 2-hexyldecyl palmitate, and 2-hexyldecyl stearate. More preferably, the compound is selected from dodecyl stearate, isotridecyl stearate, and 2-hexyldecyl stearate. Even more preferred is isotridecyl stearate. <1> ~ <22> The evaporation inhibitor for use in plant treatment agents according to any one of the preceding claims.

[0114] <24> In the formula (IV) of the compound (A6), R 5 has 7 or more, preferably 8 or more, more preferably 9 or more carbon atoms, and 19 or less, preferably 17 or less, more preferably 15 or less carbon atoms. <1> ~ <23> The evaporation inhibitor for use in plant treatment agents according to any one of the preceding claims.

[0115] <25> In the formula (IV) of the compound (A6), R 5 is a linear or branched chain alkyl group, preferably a linear or branched chain alkyl group, more preferably a linear chain alkyl group; <1> ~ <24> The evaporation inhibitor for use in plant treatment agents according to any one of the preceding claims.

[0116] <26> The compound (A6) is a compound selected from caprylic acid, capric acid, lauric acid, myristic acid, palmitic acid, stearic acid, and oleic acid, preferably capric acid and oleic acid, more preferably capric acid. <1> ~ <25> The evaporation inhibitor for use in plant treatment agents according to any one of the preceding claims.

[0117] <27> The component (A) is used by being incorporated into a treatment solution to be applied to plants, and the concentration of the component (A) at the time of use is, based on the treatment solution to be applied to plants, preferably 30 mg / kg or more, more preferably 50 mg / kg or more, even more preferably 70 mg / kg or more, still more preferably 100 mg / kg or more, and preferably 6000 mg / kg or less, more preferably 3000 mg / kg or less, even more preferably 2000 mg / kg or less, still more preferably 1000 mg / kg or less, still more preferably 500 mg / kg or less, and still more preferably 300 mg / kg or less. <1> ~ <26> The evaporation inhibitor for use in plant treatment agents according to any one of the preceding claims.

[0118] <28> <1> ~ <27> 10. An evaporation inhibitor composition for plant treatment agents, comprising the evaporation inhibitor for plant treatment agents according to any one of claims 1 to 9.

[0119] <29> The component (A) is used by being incorporated into a treatment solution to be applied to plants, and the concentration of the component (A) at the time of use is, based on the treatment solution to be applied to plants, preferably 30 mg / kg or more, more preferably 50 mg / kg or more, even more preferably 70 mg / kg or more, still more preferably 100 mg / kg or more, and preferably 6000 mg / kg or less, more preferably 3000 mg / kg or less, even more preferably 2000 mg / kg or less, still more preferably 1000 mg / kg or less, still more preferably 500 mg / kg or less, and still more preferably 300 mg / kg or less. <28> The evaporation inhibitor composition for use in plant treatment agents according to claim 1.

[0120] <30> The content of component (A) is less than 100% by mass, preferably 70% by mass or less, more preferably 50% by mass or less, even more preferably 20% by mass or less, still more preferably 10% by mass or less, even more preferably 5% by mass or less, still more preferably 3% by mass or less, and is 0.005% by mass or more, preferably 0.01% by mass or more, more preferably 0.05% by mass or more, even more preferably 0.1% by mass or more. <28> or <29> The evaporation inhibitor composition for use in plant treatment agents according to claim 1.

[0121] <31> <1> ~ <27> and (B) a pesticide efficacy enhancer other than component (A) [hereinafter referred to as component (B)].

[0122] <32> The content of component (A) is 80% by mass or less, preferably 50% by mass or less, more preferably 30% by mass or less, even more preferably 10% by mass or less, still more preferably 5% by mass or less, even more preferably 3% by mass or less, and is 0.005% by mass or more, preferably 0.01% by mass or more, more preferably 0.05% by mass or more, even more preferably 0.1% by mass or more. <31> The pesticide efficacy enhancer composition according to claim 1.

[0123] <33> The component (B) contains one or more selected from (B1) an emulsifier other than the component (A) [hereinafter referred to as the component (B1)] and (B2) a (poly)glycerin fatty acid ester [hereinafter referred to as the component (B2)]. <31> or <32> The pesticide efficacy enhancer composition according to claim 1.

[0124] <34> The component (B1) is at least one compound selected from the group consisting of a compound represented by the following formula (V) and a compound represented by the following formula (VI): <33> The pesticide efficacy enhancer composition according to claim 1. R 6 O(R 8 O) n SO3 - M + (V) R 7 SO3 - M + (VI) (In formulas (V) and (VI), R 6 and R 7 are each independently a hydrocarbon group having 8 or more carbon atoms, preferably 10 or more, more preferably 12 or more, and 24 or less, preferably 16 or less, more preferably 14 or less, preferably an aliphatic hydrocarbon group, more preferably an alkyl group, and even more preferably a linear alkyl group; R8 is an alkylene group having 2 or more and 4 or less, preferably 3 or less, and more preferably 2 carbon atoms; n is the average number of moles added and is 0 or more, preferably 1 or more, more preferably 2 or more, and 30 or less, preferably 10 or less, more preferably 5 or less, and even more preferably 3 or less; M + is a counter ion, preferably an alkali metal ion, ammonium ion, or triethanolammonium ion, more preferably an alkali metal ion or ammonium ion, and even more preferably an ammonium ion.

[0125] <35> The content of the component (B1) is preferably 0.05% by mass or more, more preferably 0.1% by mass or more, even more preferably 0.5% by mass or more, and preferably 30% by mass or less, more preferably 20% by mass or less, and even more preferably 10% by mass or less. <33> or <34> The pesticide efficacy enhancer composition according to claim 1.

[0126] <36> The component (B2) is a (poly)glycerin fatty acid ester in which the number of carbon atoms in the fatty acid is 8 or more and 16 or less, and the average degree of condensation of glycerin is 1 or more and 3 or less. <33> ~ <35> 10. The pesticide efficacy enhancer composition according to any one of the preceding claims.

[0127] <37> In the component (B2), the number of carbon atoms of the fatty acid is 8 or more, preferably 10 or more, and 16 or less, preferably 14 or less, more preferably 12 or less, and even more preferably 10. <33> ~ <36> 10. The pesticide efficacy enhancer composition according to any one of the preceding claims.

[0128] <38> In the component (B2), the fatty acid is a fatty acid having a linear or branched alkyl group or a linear or branched alkenyl group, preferably a fatty acid having a linear alkyl group, more preferably a fatty acid selected from caprylic acid, capric acid, lauric acid, myristic acid, and palmitic acid. <33> ~ <36> 10. The pesticide efficacy enhancer composition according to any one of the preceding claims.

[0129] <39> In the component (B2), the average degree of condensation of glycerin is 1 or more and 3 or less, preferably 2 or less, and more preferably 2. <33> ~ <38> 10. The pesticide efficacy enhancer composition according to any one of the preceding claims.

[0130] <40> In the component (B2), the ester bond is in the form of a monoester and / or a diester, preferably a monoester. <33> ~ <39> 10. The pesticide efficacy enhancer composition according to any one of the preceding claims.

[0131] <41> The component (C) contains a compound having an SP value of preferably 8 or more, more preferably 8.4 or more, even more preferably 9.5 or more, and preferably 18 or less, more preferably 16 or less, even more preferably 14 or less. <31> ~ <40> 10. The pesticide efficacy enhancer composition according to any one of the preceding claims.

[0132] <42> The component (A) is used by being incorporated into a treatment solution to be applied to plants, and the concentration of the component (A) at the time of use is, based on the treatment solution to be applied to plants, preferably 30 mg / kg or more, more preferably 50 mg / kg or more, even more preferably 70 mg / kg or more, still more preferably 100 mg / kg or more, and preferably 6000 mg / kg or less, more preferably 3000 mg / kg or less, even more preferably 2000 mg / kg or less, still more preferably 1000 mg / kg or less, still more preferably 500 mg / kg or less, and still more preferably 300 mg / kg or less. <31> ~ <41> 10. The pesticide efficacy enhancer composition according to any one of the preceding claims.

[0133] <43> The content of component (A) is less than 100% by mass, preferably 70% by mass or less, more preferably 50% by mass or less, even more preferably 20% by mass or less, still more preferably 10% by mass or less, even more preferably 5% by mass or less, still more preferably 3% by mass or less, and is 0.005% by mass or more, preferably 0.01% by mass or more, more preferably 0.05% by mass or more, even more preferably 0.1% by mass or more. <31> ~ <42> 10. The pesticide efficacy enhancer composition according to any one of the preceding claims.

[0134] <44> <1> ~ <27> 1. A plant treatment agent composition comprising the evaporation inhibitor for use in a plant treatment agent according to any one of claims 1 to 9 and a plant treatment agent.

[0135] <45> The plant treatment agent is an ingredient selected from pesticides, fertilizers, and preservatives, and is further a pesticide; <44> The plant treatment composition according to claim 1.

[0136] <46> The pesticide is at least one selected from a fungicide, an insecticide, an acaricide, a herbicide, and a plant growth regulator. <45> The plant treatment composition according to claim 1.

[0137] <47> (B) Contains a pesticide potentiator other than the (A) component [hereinafter referred to as the (B) component], <44> ~ <46> The plant treatment composition according to any one of the preceding claims.

[0138] <48> The component (B) contains one or more selected from (B1) an emulsifier other than the component (A) [hereinafter referred to as the component (B1)] and (B2) a (poly)glycerin fatty acid ester [hereinafter referred to as the component (B2)]. <47> The plant treatment composition according to claim 1.

[0139] <49> The composition contains the component (B1), and the content of the component (B1) at the time of use is preferably 10 mg / kg or more, more preferably 30 mg / kg or more, even more preferably 50 mg / kg or more, still more preferably 100 mg / kg or more, and preferably 5000 mg / kg or less, more preferably 3000 mg / kg or less, even more preferably 2000 mg / kg or less, and still more preferably 1000 mg / kg or less. <47> or <48> The plant treatment composition according to claim 1.

[0140] <50> The composition contains the component (B2), and the content of the component (B2) at the time of use is preferably 50 mg / kg or more, more preferably 500 mg / kg or more, even more preferably 1000 mg / kg or more, still more preferably 3000 mg / kg or more, and preferably 20000 mg / kg or less, more preferably 10000 mg / kg or less, even more preferably 8000 mg / kg or less, and still more preferably 6000 mg / kg or less. <47> ~ <49> The plant treatment composition according to any one of the preceding claims.

[0141] <51> The component (B) contains a pesticide efficacy enhancer other than the components (B1) and (B2) [hereinafter referred to as the component (B3)], and the content of the component (B3) at the time of use is preferably 500 mg / kg or more, more preferably 1000 mg / kg or more, even more preferably 5000 mg / kg or more, still more preferably 10000 mg / kg or more, and preferably 50000 mg / kg or less, more preferably 30000 mg / kg or less, even more preferably 25000 mg / kg or less, and still more preferably 20000 mg / kg or less. <47> ~ <50> The plant treatment composition according to any one of the preceding claims.

[0142] <52> The content of component (A) at the time of use is preferably 30 mg / kg or more, more preferably 50 mg / kg or more, even more preferably 70 mg / kg or more, still more preferably 100 mg / kg or more, and preferably 6000 mg / kg or less, more preferably 3000 mg / kg or less, even more preferably 2000 mg / kg or less, still more preferably 1000 mg / kg or less, still more preferably 500 mg / kg or less, still more preferably 300 mg / kg or less. <44> ~ <51> The plant treatment composition according to any one of the preceding claims.

[0143] <53> Contains water, <44> ~ <52> The plant treatment composition according to any one of the preceding claims.

[0144] <54> The water content is preferably 1% by mass or more, more preferably 10% by mass or more, and preferably 98% by mass or less, more preferably 95% by mass or less. <53> The plant treatment composition according to claim 1.

[0145] <55> <1> ~ <27> 10. A method for treating plants, comprising the step of applying to a plant a treatment solution containing the evaporation inhibitor for use in a plant treatment agent according to any one of the above items 1 to 9 and a plant treatment agent.

[0146] <56> The treatment liquid <44> ~ <54> The plant treatment agent composition according to any one of the preceding claims or a diluted solution obtained by diluting the composition with water, <55> The method for treating plants according to claim 1.

[0147] <57> the treatment liquid contains component (A) in an amount of preferably 30 mg / kg or more, more preferably 50 mg / kg or more, even more preferably 70 mg / kg or more, still more preferably 100 mg / kg or more, and preferably 6000 mg / kg or less, more preferably 3000 mg / kg or less, even more preferably 2000 mg / kg or less, still more preferably 1000 mg / kg or less, still more preferably 500 mg / kg or less, and still more preferably 300 mg / kg or less; <55> or <56> The method for treating plants according to claim 1.

[0148] <58> The treatment solution is applied to plants by aerial spraying. <55> ~ <57> 1. The method for treating plants according to any one of the preceding claims.

[0149] <59> Aerial spraying is carried out using a spraying device, and further using a spraying device selected from a manual sprayer, a backpack sprayer, a set sprayer, a carry sprayer, a self-propelled carry sprayer, a self-propelled radio-controlled sprayer, a speed sprayer, a boom sprayer, an industrial unmanned helicopter, and an industrial multi-rotor (drone), and further using a spraying device selected from an industrial unmanned helicopter and an industrial multi-rotor, and further using an industrial multi-rotor, <58> The method for treating plants according to claim 1.

[0150] <60> Aerial spraying is carried out by aircraft, <58> or <59> The method for treating plants according to claim 1.

[0151] <61> The aircraft is an industrial multi-rotor, <60> The method for treating plants according to claim 1.

[0152] <62> The treatment solution was added to 10 a (1000 ml 2 ) is preferably 0.1 L or more, more preferably 0.5 L or more, even more preferably 0.6 L or more, even more preferably 0.7 L or more, even more preferably 0.8 L or more, and preferably 500 L or less, more preferably 200 L or less, even more preferably 50 L or less, even more preferably 10 L or less, <55> ~ <61> 1. The method for treating plants according to any one of the preceding claims.

[0153] <63> The plant is a crop, <55> ~ <62> 1. The method for treating plants according to any one of the preceding claims.

[0154] <64> The agricultural crop is a plant selected from barley, pea, rice, wheat, cabbage, taro, potato, onion, corn, strawberry, melon, eggplant, tomato, leek, rapeseed, soybean, kidney bean, sweet potato, cucumber, Chinese cabbage, apple, pear, peach, persimmon, and citrus fruit; <63> The method for treating plants according to claim 1.

[0155] <65> The plant is an agricultural crop, and the treatment solution is applied to the crop before harvesting. <55> ~ <64> 1. The method for treating plants according to any one of the preceding claims.

[0156] <66> The plant is selected from trees and grasses. <55> ~ <62> 1. The method for treating plants according to any one of the preceding claims.

[0157] <67> The plant is a harmful plant or a weed, <55> ~ <62> 1. The method for treating plants according to any one of the preceding claims.

[0158] <68> The treatment solution is brought into contact with a part of the plant having a contact angle with water of 50° or more, further 70° or more, further 90° or more, and further 180° or less. <55> ~ <67> 1. The method for treating plants according to any one of the preceding claims.

[0159] Example The components used in the examples and comparative examples are listed below. Each component was used in its original form in the product. The parts by mass in the table are based on the amount used.

[0160] [Component (A)] A-1: "Rheodor TW-L106" (Polyoxyethylene (6) sorbitan monolaurate, manufactured by Kao Corporation) A-2: Polyoxyethylene (10) oleate A-3: Polyoxyethylene (6) lauryl ether A-4: "Excepal TD-S" (isotridecyl stearate, manufactured by Kao Corporation) A-5: "Polyethylene glycol 2000" (polyethylene glycol, manufactured by Tokyo Chemical Industry Co., Ltd., average molecular weight 1850 to 2150) A-6: "Polypropylene glycol, diol type, 2,000" (polypropylene glycol, manufactured by Fujifilm Wako Pure Chemical Industries, Ltd., average molecular weight approximately 2,000) A-7: "Lunac 1098" (capric acid, manufactured by Kao Corporation) A-8: Oleic acid (Fujifilm Wako Pure Chemical Industries, Ltd.)

[0161] [(B) component] <(B1) component> B1-1: "Latemul AD-25" (ammonium lauryl sulfate, manufactured by Kao Corporation, 24.0% by mass aqueous solution) B1-2: "Rheodol 440V" (polyoxyethylene (40) sorbitol tetraoleate, manufactured by Kao Corporation)

[0162] <(B2) component> B2-1: "Sunsoft No. 760-C" (glyceryl caprate, manufactured by Taiyo Kagaku Co., Ltd.)

[0163] <Component (B3)> B3-1: "Makupika" (polyoxyethylene methylpolysiloxane 93.0% by mass, manufactured by Ishihara Biosciences Co., Ltd.) B3-2: "Squash" (sorbitan fatty acid ester 70% by mass, polyoxyethylene resin acid ester 5.5% by mass, manufactured by Kao Corporation)

[0164] [(C) component] C-1: "Kalcol 1098" (n-decanol, manufactured by Kao Corporation) C-2: "DMSO" (dimethyl sulfoxide, manufactured by Toray Fine Chemicals Co., Ltd.)

[0165] [Pesticides] Pesticide 1: "Brassidantz (registered trademark) Flowable" (clothianidin 6.6% by mass, ferimzone 15.0% by mass, fthalide 15.0% by mass, manufactured by Sumitomo Chemical Co., Ltd.) Pesticide 2: "Topsin M Sol" (thiophanate methyl 40.0% by mass, manufactured by Nippon Soda Co., Ltd.) Pesticide 3: "Starklemate Liquid 10" (dinotefuran 10.0% by mass, manufactured by Mitsui Chemicals Agro, Inc.) Pesticide 4: "Moncut (registered trademark) Beflan (registered trademark) Flowable" (iminoctadine acetate 10.0% by mass, flutolanil 20.0% by mass, manufactured by Nippon Soda Co., Ltd.) Pesticide 5: "Prebason (registered trademark) Flowable 5" (chlorantraniliprole 5.0% by mass, manufactured by FMC Chemicals Co., Ltd.)

[0166] [Pesticide efficacy enhancer composition] D-1 to D-7: Pesticide efficacy enhancer compositions shown in Table 1 D-6 and D-7 are also evaporation inhibitor compositions for plant treatment agents.

[0167] [Table 1]

[0168] [Other ingredients] Water: Purified water of 1 μS / cm or less produced by the Organo Corporation G-10DSTSET water purification system

[0169] [Examples 1 to 7 and Comparative Examples 1 to 7] The above components were used to prepare the pesticide compositions shown in Tables 2 to 8. Using the obtained pesticide compositions, the coverage rate of the target object was measured by the following method. The coverage rate is also shown as a relative value to the blank for each test group. Some of the ratios to the blank in the tables correspond to the coverage rate ratios described above. The results are shown in Tables 2 to 8. The pesticide compositions in Tables 2 to 8 correspond to the treatment solutions applied to plants.

[0170] <Coverage measurement method 1> Each pesticide composition was filled into a polypropylene spray vial (Maruem Co., Ltd., No. 6) to prepare the spraying article for evaluation. In a windless indoor environment with a temperature of 21°C and humidity of 40%, samples (water-sensitive paper or cut plant leaves) were attached to acrylic plates (Hikari Co., Ltd., 160 mm x 180 mm) with double-sided tape at positions 1 to 6 of a 0.5 m x 1.0 m section shown in Figure 1. The sample head was then pushed 2 m above the center of each of the eight equal-sized sections. Each push dispensed 62.5 μL, so eight pushes dispensed a total of 0.5 mL, equivalent to 1.0 L / 10 a. After spraying the pesticide composition, the sample surface was observed with a digital microscope (VHX-1000, Keyence Corporation). The area of discoloration was determined, and the average value of the six positions was used as the coverage rate (%). For the water-sensitive paper, the area of the part that changed color from yellow to blue was taken as the covered area, and for the plant leaves, the area of the part that was colored white was taken as the covered area. Water-sensitive paper: Water-sensitive test paper (Model No. 20301-1N, 76mm x 26mm, manufactured by Spraying Systems Co.) Plant leaves: Rice (Koshihikari, tillering stage) leaves (contact angle with water: 141°)

[0171] <Example 1 and Comparative Example 1> Using the pesticide compositions shown in Table 2, the coverage of water-sensitive paper and plant leaves was determined. Table 2 shows that, regardless of the pesticide, the pesticide composition using component (A) had a higher coverage rate on the water-sensitive paper than the blank without component (A), and was able to suppress evaporation. It can also be seen that the improved coverage rate also improved the coverage rate on the plant leaf surface, allowing the pesticide to wet and spread after coating, and increasing the spread area on the leaf surface.

[0172] [Table 2]

[0173] <Example 2 and Comparative Example 2> Using the pesticide compositions shown in Table 3, the coverage of water-sensitive paper and plant leaves was determined. Table 3 shows that the pesticide composition containing component (A) has a higher coverage rate on the water-sensitive paper than the blank without component (A), and is able to suppress evaporation. It also shows that the improved coverage rate also improves the coverage rate on the plant leaf surface, allowing the pesticide to wet and spread after coating, and increasing the spread area on the leaf surface.

[0174] [Table 3]

[0175] <Example 3 and Comparative Example 3> Using the pesticide compositions shown in Table 4, the coverage of water-sensitive paper and plant leaves was determined. Table 4 shows that the pesticide composition using component (A) has a higher coverage rate on water-sensitive paper than the blank without component (A), suppressing evaporation. It can also be seen that the improved coverage rate also improves the coverage rate on the plant leaf surface, allowing the pesticide to spread after coating and increasing the spread area on the leaf surface. It can also be seen that the coverage rate is further improved by using component (B), or a combination of components (B) and (C).

[0176] [Table 4]

[0177] <Example 4 and Comparative Example 4> Using the pesticide compositions shown in Table 5, the coverage rates for water-sensitive paper and plant leaves were determined. Table 5 shows that the pesticide composition containing component (A) has a higher coverage rate on the water-sensitive paper than the blank containing no component (A), suppressing evaporation. Furthermore, the improved coverage rate also improves the coverage rate on the plant leaf surface, allowing the pesticide to spread after coating and increasing the surface area of the leaf where it is applied.

[0178] [Table 5]

[0179] <Example 5 and Comparative Example 5> Using the pesticide compositions shown in Table 6, the coverage rate on water-sensitive paper was determined. Table 6 shows that the pesticide composition using component (A) has a higher coverage of the water-sensitive paper than the blank that does not contain component (A), and is therefore able to suppress evaporation.

[0180] [Table 6]

[0181] <Example 6 and Comparative Example 6> Using the pesticide compositions shown in Table 7, the coverage rate on water-sensitive paper was determined. Table 7 shows that the pesticide compositions using the pesticide efficacy enhancer composition containing component (A) have a higher coverage rate on the water-sensitive paper than the blanks that do not use the pesticide efficacy enhancer composition, regardless of the pesticide used, and are able to suppress evaporation.

[0182] [Table 7]

[0183] <Example 7 and Comparative Example 7> The coverage of water-sensitive paper was determined using the pesticide compositions shown in Table 8. The results are shown in Table 8. The pesticide compositions in Table 8 correspond to the treatment solutions applied to plants. Table 8 shows that the pesticide compositions using the pesticide efficacy enhancer composition containing component (A) have a higher coverage rate on the water-sensitive paper than the blank using the pesticide efficacy enhancer composition not containing component (A), regardless of the pesticide used, and are therefore able to suppress evaporation.

[0184] [Table 8]

[0185] Example 8 and Comparative Example 8 <Coverage measurement method 2> Each pesticide composition was loaded into the tank of a pesticide spray drone (AGRAS MG-1, manufactured by DJI, using a Spraying Systems Co. TX-VK8 nozzle). Outdoors, samples (cut plant leaves) were attached individually to acrylic panels (Hikari Corporation, 160mm x 180mm) with double-sided tape at positions 1 to 12 of a 16m x 8m plot shown in Figure 2. The plots in Figure 2 are designated as plots 1 to 4, spaced 4m apart from the left. The pesticide composition was sprayed from bottom to top in the center of plot 1, then from top to bottom in the center of plot 2, then from bottom to top in the center of plot 3, and finally from top to bottom in the center of plot 4. The spray conditions were a spray height of 2m, a discharge rate of 800mL / min, and a flight speed of 15km / h, corresponding to a spray volume of 0.8L / 10a. After spraying the pesticide composition, the sample surface was observed with a digital microscope ("VHX-1000", manufactured by Keyence Corporation), the area of the discolored site was determined, and the average value of 12 locations was taken as the coverage rate (%). Plant leaves: Rice (Koshihikari, tillering stage) leaves (contact angle with water: 141°)

[0186] The pesticide compositions shown in Table 9 were prepared using the above ingredients. The coverage of the target object was measured using the obtained pesticide compositions by the method described above. The coverage was also shown as a relative value to the blank for each test group. The results are shown in Table 9. The pesticide compositions in Table 9 correspond to the treatment solutions applied to plants. Table 9 shows that the pesticide composition using the pesticide efficacy enhancer composition containing component (A) has a higher coverage rate on the plant leaf surface than the blank that does not use the pesticide efficacy enhancer composition, and is able to suppress evaporation.

[0187] [Table 9]

Claims

1. (A) A method for treating plants, comprising the step of applying to plants a treatment solution containing a water evaporation inhibitor for a plant treatment agent, which comprises at least one compound selected from the following compounds (A1) to (A6) [hereinafter referred to as component (A)], and a plant treatment agent which is a component selected from a pesticide, a fertilizer, and a preservative, The treatment solution contains (B) an agricultural chemical efficacy enhancer other than the component (A) [hereinafter referred to as the component (B)], the treatment liquid contains, as component (B), one or more (B1) components selected from sodium dodecyl sulfate, ammonium dodecyl sulfate, sodium dodecylbenzenesulfonate, ammonium dodecylbenzenesulfonate, sodium alkyl ether sulfate, ammonium alkyl ether sulfate, polyoxyethylene distyrenated phenyl ether, polyoxyethylene tribenzyl phenyl ether, polyoxyethylene sorbitol tetraoleate, polyoxyethylene alkylamine, and quaternary ammonium salts, and (B2) a (poly)glycerin fatty acid ester; The treatment solution is applied to plants by aerial spraying using a spraying device selected from an industrial unmanned helicopter and an industrial multi-rotor. How to process plants. <Compound (A1)> A compound in which at least one alkylene oxide (hereinafter referred to as AO) selected from ethylene oxide (hereinafter referred to as EO) and propylene oxide (hereinafter referred to as PO) is added to a compound of the following formula (I) in an average addition mole number of 1 to 22: R １ OH (I) [In formula (I), R １ is an alkyl group having 10 to 14 carbon atoms or an alkenyl group having 10 to 14 carbon atoms. <Compound (A2)> A compound in which at least one AO selected from EO and PO is added to a compound of the following formula (II) in an average added mole number of 1 to 22: R ２ -COOH (II) [In formula (II), R ２ is an alkyl group having 11 to 19 carbon atoms or an alkenyl group having 11 to 19 carbon atoms. <Compound (A3)> A compound in which at least one AO selected from EO and PO is added to a monoester of a fatty acid having 10 to 20 carbon atoms and sorbitan in an average addition mole number of 1 to 22. <Compound (A4)> Polyalkylene glycol with a weight average molecular weight of 100 to 3,000 <Compound (A5)> A compound represented by the following formula (III): R ３ -COO-R ４ (III) [In formula (III), R ３ is an alkyl group having 15 to 19 carbon atoms; R ４ is an alkyl group having 1 to 18 carbon atoms. <Compound (A6)> A compound represented by the following formula (IV): R ５ -COOH (IV) [In formula (IV), R ５ is an alkyl group having 7 to 19 carbon atoms or an alkenyl group having 7 to 19 carbon atoms.

2. 2. The method for treating plants according to claim 1, wherein the agricultural chemical is at least one selected from the group consisting of fungicides, insecticides, miticides, herbicides and plant growth regulators.

3. 3. The method for treating plants according to claim 1, wherein the treatment solution contains the evaporation inhibitor for plant treatment agents in an amount of 30 mg / kg or more and 6000 mg / kg or less.

4. 4. The method for treating plants according to claim 1, wherein the treatment solution is sprayed at a rate of 0.1 L to 500 L per 10 a.

5. 5. The method for treating plants according to claim 1, wherein the treatment solution is brought into contact with a part of the plant having a contact angle with water of 50° or more and 180° or less.

6. 6. The method for treating plants according to claim 1, wherein the plants are agricultural crops and the treatment solution is applied to the crops before harvesting.

7. A pesticide efficacy enhancer composition comprising: (A) a water evaporation inhibitor for plant treatment agents, the water evaporation inhibitor being an ingredient selected from pesticides, fertilizers, and preservatives, comprising at least one compound selected from the following compounds (A1) to (A6) [hereinafter referred to as component (A)]; and (B) a pesticide efficacy enhancer other than component (A) [hereinafter referred to as component (B)], wherein component (B) comprises one or more ingredients (B1) selected from sodium dodecyl sulfate, ammonium dodecyl sulfate, sodium dodecylbenzenesulfonate, ammonium dodecylbenzenesulfonate, sodium alkyl ether sulfate, ammonium alkyl ether sulfate, polyoxyethylene distyrenated phenyl ether, polyoxyethylene tribenzyl phenyl ether, polyoxyethylene sorbitan tetraoleate, polyoxyethylene alkylamine, and quaternary ammonium salts; and (B2) a (poly)glycerin fatty acid ester. <Compound (A1)> A compound in which at least one alkylene oxide (hereinafter referred to as AO) selected from ethylene oxide (hereinafter referred to as EO) and propylene oxide (hereinafter referred to as PO) is added to a compound of the following formula (I) in an average addition mole number of 1 to 22: R １ OH (I) [In formula (I), R １ is an alkyl group having 10 to 14 carbon atoms or an alkenyl group having 10 to 14 carbon atoms. <Compound (A2)> A compound in which at least one AO selected from EO and PO is added to a compound of the following formula (II) in an average added mole number of 1 to 22: R ２ -COOH (II) [In formula (II), R ２ is an alkyl group having 11 to 19 carbon atoms or an alkenyl group having 11 to 19 carbon atoms. <Compound (A3)> A compound in which at least one AO selected from EO and PO is added to a monoester of a fatty acid having 10 to 20 carbon atoms and sorbitan in an average addition mole number of 1 to 22. <Compound (A4)> Polyalkylene glycol with a weight average molecular weight of 100 to 3,000 <Compound (A5)> A compound represented by the following formula (III): R ３ -COO-R ４ (III) [In formula (III), R ３ is an alkyl group having 15 to 19 carbon atoms; R ４ is an alkyl group having 1 to 18 carbon atoms. <Compound (A6)> A compound represented by the following formula (IV): R ５ -COOH (IV) [In formula (IV), R ５ is an alkyl group having 7 to 19 carbon atoms or an alkenyl group having 7 to 19 carbon atoms.

8. 8. The agricultural chemical efficacy enhancer composition according to claim 7, wherein the component (B2) is a (poly)glycerin fatty acid ester in which the number of carbon atoms in the fatty acid is 8 or more and 16 or less and the average degree of condensation of glycerin is 1 or more and 3 or less.

9. 9. The agricultural chemical efficacy enhancer composition according to claim 7 or 8, wherein the fatty acid in component (B2) is a fatty acid selected from caprylic acid, capric acid, lauric acid, myristic acid, and palmitic acid.

10. 10. The agricultural chemical efficacy enhancer composition according to claim 7, wherein the average degree of condensation of glycerin in component (B2) is 1 or more and 3 or less.

11. The agricultural chemical efficacy enhancer composition according to any one of claims 7 to 10, wherein the ester bond in component (B2) is in the form of a monoester and / or a diester.

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