Pesticide composition and application thereof

Abstract

The invention belongs to the technical field of pesticides, and relates to a pesticide composition and application thereof. Effective components of the pesticide composition comprise an active component A and an active component B, the active component A is a compound shown in a formula (I), the active component B is any one of flufenacet nicotinamide, pyriminostrobin and cycloxaprid, and the mass ratio of the active component A to the active component B is 1: 40-35: 1. The composition has the advantages of synergism, resistance delay and the like, and is used for preventing and treating hemiptera pests.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of pesticides, and particularly relates to a pesticide composition. BACKGROUND

[0002] Rice is the staple food of more than half of the world's population, and its stable yield is of great importance to world food security. However, the rice stripe virus (RSV) transmitted by small brown planthoppers (SBPH) causes rice stripe disease, which seriously threatens the safe production of rice.

[0003] Flumetnicam is a nicotinamide cumulative insecticide, which indirectly activates the transient receptor potential vanilloid subfamily 1 (TRPV1) channel to exert insecticidal activity through the accumulation of nicotinamide. The structural formula is as follows:

[0004]

[0005] Flufenerim is a pyrimidinamine compound, which is a mitochondrial electron transport inhibitor (METID). The structural formula is as follows:

[0006]

[0007] Cycloxaprid is a new neonicotinoid insecticide with a cis-oxo bridge heterocyclic structure, which is obtained by ring optimization based on imidacloprid analogs. It has good insecticidal effect on hemipteran and lepidopteran pests. The structural formula is as follows:

[0008]

[0009] Different pesticide mixtures are one of the effective methods to delay pest resistance, but their complex effects are different. Therefore, it is of great significance to the sustainable development of agriculture to research and develop insecticide compositions with high efficiency, low toxicity and environmental friendliness. The present application can effectively control hemipteran pests and reduce the development of pest resistance by mixing two or more pesticides with different mechanisms of action of the compound of formula (I), flumetnicam, flufenerim and cycloxaprid. SUMMARY

[0010] The technical problem to be solved by the present application is to overcome the shortcomings of the prior art, and to provide a pesticide composition with synergistic effect and resistance reduction for hemipteran pests and its application.

[0011] To achieve the above-mentioned purpose, the technical scheme adopted by the present application is as follows: a pesticide composition comprising active ingredient A and active ingredient B, wherein the active ingredient A is a compound of formula (I) The active ingredient B is any one of flumetnicam, flufenerim and cycloxaprid.

[0012] Further, the mass ratio between the active ingredient A and the active ingredient B is 1:40-35:1 or any value between the above values,

[0013] 1:40, 1:29, 1:27, 1:25, 1:18, 1:16, 1:14, 1:9, 1:8, 1:7, 1:4, 1:3, 1:2, 5:6, 1:1, 3:2, 2:1, 4:1, 5:1, 6:1, 23:2, 12:1, 15:1, 22:1, 24:1, 25:1, 32:1, 35:1;

[0014] Further, the mass ratio between the active ingredient A and the active ingredient B is 1:29-25:1 or any value between the above values,

[0015] 1:29, 1:27, 1:25, 1:18, 1:16, 1:14, 1:9, 1:8, 1:7, 1:4, 1:3, 1:2, 5:6, 1:1, 3:2, 2:1, 4:1, 5:1, 6:1, 23:2, 12:1, 15:1, 22:1, 24:1, 25:1;

[0016] When the active ingredient B is flonicamid,

[0017] Further, the mass ratio between the active ingredient A and flonicamid is 1:27-22:1,

[0018] Further, the mass ratio between the active ingredient A and flonicamid is 1:18-12:1,

[0019] Further, the mass ratio between the active ingredient A and flonicamid is 1:27, 1:18, 1:9, 1:3, 5:6, 3:2, 4:1, 12:1, 22:1, 32:1;

[0020] When the active ingredient B is methoxyfenozide,

[0021] Further, the mass ratio between the active ingredient A and methoxyfenozide is 1:29-24:1,

[0022] Further, the mass ratio between the active ingredient A and methoxyfenozide is 1:16-24:1,

[0023] Further, the mass ratio between the active ingredient A and methoxyfenozide is 1:29, 1:16, 1:8, 1:4, 1:1, 5:1, 15:1, 24:1, 35:1;

[0024] When the active ingredient B is pyridalyl,

[0025] Further, the mass ratio of the compound of formula (I) to pyridalyl is 1:25-25:1,

[0026] Further, the mass ratio of the compound of formula (I) to pyridalyl is 1:14-25:1,

[0027] Further, the mass ratio of the compound of formula (I) to pyridalyl is 1:40, 1:25, 1:14, 1:7, 1:2, 2:1, 6:1, 23:2, 25:1.

[0028] Further, the total content of the active ingredient A and the active ingredient B in the pesticide composition is 0.5%-90% based on 100wt% of the total mass of the pesticide composition.

[0029] Further, the total content of the active ingredient A and the active ingredient B in the pesticide composition is 1%-85%.

[0030] Further, the total content of the active ingredient A and the active ingredient B in the pesticide composition is 5%-75%.

[0031] Further, the pesticide composition further comprises an agriculturally acceptable auxiliary ingredient in addition to the active ingredients, and the auxiliary ingredient is selected from one or more of wetting agents, dispersants, emulsifiers, thickening agents, disintegrating agents, antifreezing agents, antifoaming agents, solvents, preservatives, stabilizers, synergists or carriers.

[0032] Further, the pesticide composition further comprises an auxiliary agent, and the auxiliary agent is selected from one or more of wetting agents, dispersants, emulsifiers, thickening agents, disintegrating agents, antifreezing agents, antifoaming agents, solvents, preservatives, stabilizers, synergists and carriers.

[0033] Further, the wetting agent is selected from one or more of alkyl benzene sulfonate, alkyl naphthalene sulfonate, lignin sulfonate, sodium dodecyl sulfate, dioctyl succinate sulfonate sodium, alpha olefin sulfonate, alkyl phenol polyoxyethylene ether, castor oil polyoxyethylene ether, alkyl phenol ethoxylate, fatty alcohol ethoxylate, fatty alcohol polyoxyethylene ether sodium sulfate, silkworm excrement, soap nut powder, soapberry powder, SOPA, detergent, emulsifier 2000 series and wetting penetrant F; and / or

[0034] Further, the dispersing agent is selected from one or more of lignin sulfonate, alkyl naphthalene sulfonate formaldehyde condensate, naphthalene sulfonate, tristyrylphenol ethoxylate phosphate ester, fatty alcohol ethoxylate, alkyl phenol polyoxyethylene, alkyl phenol polyoxyethylene formaldehyde methylether condensate sulfate, fatty amine polyoxyethylene, glycerol fatty acid ester polyoxyethylene, polycarboxylate, polyacrylic acid, phosphate, EO-PO block copolymer, and EO-PO graft copolymer; and / or

[0035] Further, the emulsifying agent is selected from one or more of calcium dodecylbenzenesulfonate, alkyl phenol formaldehyde resin polyoxyethylene, phenylethyl phenol polyoxyethylene polyoxypropylene ether, fatty alcohol ethylene oxide-propylene oxide copolymer, styryl phenol polyoxyethylene ether, castor oil polyoxyethylene ether, and alkyl phenol ether phosphate ester; and / or

[0036] Further, the thickening agent is selected from one or more of xanthan gum, organobentonite, gum arabic, sodium alginate, magnesium aluminum silicate, carboxymethyl cellulose, and white carbon black; and / or

[0037] Further, the disintegrating agent is selected from one or more of sodium sulfate, ammonium sulfate, aluminum chloride, sodium chloride, ammonium chloride, bentonite, glucose, sucrose, starch, cellulose, urea, sodium carbonate, sodium bicarbonate, citric acid, and tartaric acid; and / or

[0038] Further, the antifreezing agent is selected from one or more of alcohols, alcohol ethers, chlorinated hydrocarbons, and inorganic salts; and / or

[0039] Further, the antifoaming agent is selected from one or more of C 10 -C 20 saturated fatty acid compound, silicone oil, silicone compound, C8-C 10 fatty alcohol; and / or

[0040] Further, the solvent is selected from one or more of benzene, toluene, xylene, mesitylene, methanol, ethanol, isopropanol, n-butanol, dimethyl sulfoxide, dimethylformamide, cyclohexanone, alkylene carbonate, diesel oil, solvent oil, vegetable oil, vegetable oil derivative, and water; and / or

[0041] Further, the preservative is selected from one or more of propionic acid, sodium propionate, sorbic acid, sodium sorbate, potassium sorbate, benzoic acid, sodium benzoate, sodium p-hydroxybenzoate, methyl p-hydroxybenzoate, carboxin, and 1,2-benzisothiazolin-3-one; and / or

[0042] Further, the stabilizer is selected from one or more of disodium hydrogen phosphate, oxalic acid, succinic acid, adipic acid, borax, 2,6-di-tert-butyl-p-cresol, triethanolamine oleate, epoxidized vegetable oil, kaolin, bentonite, attapulgite, white carbon black, talc, montmorillonite and starch; and / or

[0043] Further, the synergist is selected from synergistic phosphorus, synergistic ether; and / or

[0044] The carrier is selected from one or more of ammonium salt, ground natural mineral, ground artificial mineral, silicate, resin, wax, solid fertilizer, water, organic solvent, mineral oil, vegetable oil and vegetable oil derivative.

[0045] Further, the pesticide composition is prepared into an agriculturally permissible formulation form, which is selected from a solid formulation and / or a liquid formulation.

[0046] Further, the solid formulation includes powder, granule, pellet, tablet, strip, wettable powder, oil dispersible powder, emulsion powder, water dispersible granule, emulsion granule, water dispersible tablet, soluble powder, soluble tablet or soluble granule.

[0047] Further, the liquid formulation includes soluble liquid, soluble gel, oil, spreadable oil, emulsion, emulsion, dispersible liquid, paste, water emulsion, oil emulsion, microemulsion, lipid, suspension, microcapsule suspension, oil suspension, dispersible oil suspension, suspoemulsion, microcapsule suspension-suspension, microcapsule suspension-water emulsion or microcapsule suspension-suspoemulsion.

[0048] Further, the solid formulation is selected from wettable powder, water dispersible granule; the liquid formulation is selected from emulsion, water emulsion, microemulsion, suspension, suspoemulsion, dispersible oil suspension.

[0049] The pesticide composition of the present application is used in the prevention and control of agricultural and forestry pests, sanitary pests.

[0050] The pesticide composition of the present application can be used to prevent and control pests on fruit trees, vegetables, ornamental plants, tea, cotton, cereal crops.

[0051] Further, the agricultural and forestry pests, sanitary pests are hemipteran, thysanopteran, lepidopteran, dipteran pests.

[0052] Further, the Hemiptera pests include: Acrosternum hilare (green stink bug), Blissus leucopterus (chinch bug), Calocoris norvegicus, Acrosternum hilare (green stink bug), Blissus leucopterus (chinch bug), Calocoris norvegicus, (aphids, scales, whiteflies, leaflhoppers), Acrythosiphon pisum (pea aphid), Adelges spp., Aleurodes proletella, Aleurodicus disperses, Aleurothrixus floccosus (woolly whitefly), Aluacaspis spp., Aonidiella aurantii, Aphis spp., Aphis gossypii (cotton aphid), Aphis pomi, Aulacorthum solani (foxglove aphid), Bemisia spp. (whitefly), Bemisia argentifolii, Bemisia tabaci (sweetpotato whitefly), Brachycolus noxius, Brachycorynella asparagi (asparagus aphid), Brevennia rehi, Brevicoryne brassicae, Ceroplastes spp., Ceroplastes rubens (red wax scale), Chionaspis spp., Chrysomphalus spp., Dysaphis plantaginea (rosy apple aphid), Empoasca spp. (leafhoppers), Hyalopterus pruni (woolly aphid), Lachnus spp., Macrosiphum spp., Megoura viciae, Melanaphis lindquisti, Metopolophium dirhodum (rose grain aphid), Myzus spp., Myzus persicae (cotton aphid), Nasonovia ribis (lettuce aphid), Nilaparvata lugens (brown planthopper), Pemphigus spp., Perkinsiella saccharicida, Phenacoccus spp., Phylloxera spp., Psylla spp. (psyllids), Pseudococcus spp., Rastrococcus spp., Rhopalosiphum maidis (corn leaf aphid), Sogatella furcifera (white-backed planthopper), and Toxoptera spp.Apple cotton aphid (Eriosomalanigerum), cottony cushion scale (Icerya purchasi), mango leafhopper (Idioscopus nitidulus), planthopper (Laodelphaxstriatellus), oyster scale (Lepidosaphes spp.), long-tubed aphid (Macrosiphum spp.), euphorbiae, granarium, rosae, quadrilineatus (aster leafhopper), frimbiolata, dirhodum, longicornis, myzus spp., persicae (green peach aphid) The following species are listed: *Nephotettix* spp., *Nephotettix cinctipes* (green leafhopper), *Nilaparvata lugens*, *Parlatoria pergandii*, *Peregrinus maidis* (corndelphacid), *Philaenus* spp., *Phylloxeravitifoliae* (grape phylloxera), *Physokermes piceae* (spruce bud scale), *Planococcus* spp. (mealyptus), *Pseudococcus* spp. (mealyptus), and *Pseudococcus brevipes* (pineapple mealybug). The species *Mealybug*, *Quadraspidiotus perniciosus* (San Josescale), and *Rhopalosiphum spp.*Rhopalosiphum maida (corn leaf aphid), Rhapalosiphum padi (oat bird-cherry aphid), Saissetia spp., Saissetia oleae, Schizaphis graminum (greenbug), Sitobion avenae (English grain aphid)), Sogatella furcifera, Therioaphis spp., Toumeyella spp., Trialeurodes spp., Trialeurodes vaporariorum;.

[0053] Still further, the Hemipteran pests include Bemisia tabaci, Nilaparvata lugens, and aphids.

[0054] The present application also provides a method for using the pesticide composition as described above, particularly applying an effective dose to the pests to be controlled or the medium where the pests grow.

[0055] The pesticide composition of the present application has the following advantages:

[0056] 1) The pesticide composition of the present application shows synergistic effect within a certain ratio range, and has remarkable control effect.

[0057] 2) The pesticide composition of the present application has unique action mechanism of the two active ingredients, delays the occurrence of pest resistance, and prolongs the service life of the product. DETAILED DESCRIPTION

[0058] The present application is further illustrated by the following examples, in which the percentages are all by weight, but the present application is not limited thereto.

[0059] The composition of the present application can be provided in the form of a preparation. The composition can be prepared into a suspension, a water dispersible granule, a wettable powder, etc. according to the need. The content of the active ingredient in the composition of the present application depends on the application amount when used alone, and also depends on the mixing ratio and the degree of synergistic effect. The optimal range of the content of the active ingredient varies according to the type of the composition.

[0060] Preparation Examples of the Preparation

[0061] Specific preparation method:

[0062] Emulsifiable concentrate: according to the formula, the active ingredient, solvent, emulsifier, dispersant and stabilizer are mixed to form an oil phase, the antifreeze is dissolved in water to form an aqueous phase, and the oil phase is slowly added to the aqueous phase under the action of a shearing machine, and the shearing is continued for about 30 minutes to prepare the product.

[0063] Microemulsion: according to the formula, the active ingredient is completely dissolved with solvent, then the emulsifier, stabilizer, penetrant and synergist are added and mixed uniformly, and finally deionized water is added. After stirring thoroughly, the product is prepared

[0064] Water dispersible granules: according to the formula, the active ingredient, humectant, dispersant, disintegrant and filler are mixed uniformly, pulverized with a super micro airflow pulverizer, kneaded, then granulated, dried and sieved in a fluidized bed granulator to prepare the product

[0065] Wettable powder: according to the formula, the active ingredient, humectant, dispersant and filler are mixed, mechanically pulverized, then air-pulverized, and mixed uniformly to prepare the product.

[0066] Suspension concentrate: according to the formula, the active ingredient, surfactant and other functional additives are sequentially placed in a reaction kettle, mixed with water, high-speed sheared, wet sand milled, and finally homogenized and filtered to prepare the product.

[0067] Specific formulations and their formula compositions:

[0068]

[0069]

[0070] Indoor bioactivity determination test of rice planthopper

[0071] Test target: Nilaparvata lugens.

[0072] Test agent: compound of formula I, nitenpyram, acetamiprid and pyridaben technical agent.

[0073] Agent preparation: after dissolving the above technical agent with a suitable solvent, 0.1% Tween 80 aqueous solution is used to prepare 5 series of concentration gradients according to the method of equal proportion.

[0074] Test method: the test uses rice stem immersion method. Tiller stage rice seedlings cultured indoors are selected, washed and cut into 10 cm long rice stems with roots, and dried until the surface is free of water marks.

[0075] The prepared rice stems are immersed in the prepared pesticide solution for 30 seconds, taken out and dried, wrapped with absorbent cotton to keep the roots moist, wrapped with plastic wrap, and placed in test tubes, 3 plants per test tube.

[0076] Each treatment was repeated 4 times, and the treatment without the drug (containing all solvents and emulsifiers) was set as a blank control.

[0077] The test insects were moved into test tubes with a suction device, 15 insects per test tube, and the tube opening was covered with gauze.

[0078] Feeding and observation: After treatment, the test insects were fed and observed under the conditions of (25±1)℃, relative humidity of 60%-80%, and light cycle of L:D=(16:8)h. The total number of insects and the number of dead insects were checked 48h after treatment.

[0079] Calculation method:

[0080] According to the survey data, the mortality of each treatment was calculated.

[0081] The formula is as follows:

[0082]

[0083] In the formula:

[0084] P - mortality, unit: percentage (%);

[0085] K - represents the number of dead insects, unit: head;

[0086] N - represents the total number of insects in the treatment, unit: head.

[0087]

[0088] In the formula:

[0089] P1 - corrected mortality, unit: percentage (%);

[0090] P t - treatment mortality, unit: percentage (%);

[0091] P0 - blank control mortality, unit: percentage (%).

[0092] If the control mortality is <5%, no correction is needed; if the control mortality is between 5%-20%, the corrected mortality formula should be used for correction; if the control mortality is >20%, the test needs to be redone.

[0093] Statistical analysis system was used for analysis to obtain the virulence regression equation, LC 50 value and correlation coefficient, and to evaluate the activity of the test drug on the biological test material.

[0094] The co-toxicity coefficient (CTC value) of the mixed agent was calculated according to the following formula:

[0095]

[0096] wherein:

[0097] ATI - Actual Toxicity Index of the mixture;

[0098] S - LC of the standard acaricide 50 in milligrams per liter (mg / L);

[0099] M - LC of the mixture 50 in milligrams per liter (mg / L).

[0100] TTI = TI A x P A + TI B x P B

[0101] wherein:

[0102] TTI - Theoretical Toxicity Index of the mixture;

[0103] TI A - Toxicity Index of the A agent;

[0104] P A - Percentage of the A agent in the mixture, in percent (%);

[0105] TI B - Toxicity Index of the B agent;

[0106] P B - Percentage of the B agent in the mixture, in percent (%).

[0107]

[0108] wherein:

[0109] CTC - Co-Toxicity Coefficient;

[0110] ATI - Actual Toxicity Index of the mixture;

[0111] TTI - Theoretical Toxicity Index of the mixture.

[0112] A CTC of the mixture of > 120 indicates a synergistic effect; a CTC of < 80 indicates an antagonistic effect; and a CTC of 80 < CTC < 120 indicates an additive effect.

[0113] Results of the indoor activity tests:

[0114] As shown by the results of the indoor tests in Table 1, the compound of formula I, when properly mixed with acetamiprid, shows a synergistic effect on the brown planthopper within a certain mass ratio range.

[0115] The mass ratio of the compound of formula I to flupyradifurone is 1:27-32:1, the co-toxicity coefficient of the compound of formula I to flupyradifurone to brown planthopper is greater than 80, and the compound of formula I and flupyradifurone show additive or synergistic effect; the mass ratio of the compound of formula I to flupyradifurone is 1:27-22:1, the co-toxicity coefficient of the compound of formula I to flupyradifurone to brown planthopper is greater than 120, and the compound of formula I and flupyradifurone show synergistic effect; the mass ratio of the compound of formula I to flupyradifurone is 1:18-12:1, the co-toxicity coefficient of the compound of formula I to flupyradifurone to brown planthopper is greater than 130, and the synergistic effect is significant.

[0116] Table 1 The results of indoor toxicity bioactivity test of the compound of formula I and flupyradifurone to brown planthopper

[0117]

[0118] As shown by the indoor test results in Table 2, the compound of formula I and nitenpyram show synergistic effect when they are reasonably compounded within a certain mass ratio range. The mass ratio of the compound of formula I to nitenpyram is 1:29-35:1, the co-toxicity coefficient of the compound of formula I to nitenpyram to brown planthopper is greater than 80, and the compound of formula I and nitenpyram show additive or synergistic effect; the mass ratio of the compound of formula I to nitenpyram is 1:29-24:1, the co-toxicity coefficient of the compound of formula I to nitenpyram to brown planthopper is greater than 130, and the synergistic effect is obvious; the mass ratio of the compound of formula I to nitenpyram is 1:16-15:1, the co-toxicity coefficient of the compound of formula I to nitenpyram to brown planthopper is greater than 150, and the synergistic effect is significant.

[0119] Table 2 The results of indoor toxicity bioactivity test of the compound of formula I and nitenpyram to brown planthopper

[0120]

[0121]

[0122] As shown by the indoor test results in Table 3, the compound of formula I and cyhalothrin show synergistic effect when they are reasonably compounded within a certain mass ratio range. The mass ratio of the compound of formula I to cyhalothrin is 1:40-25:1, the co-toxicity coefficient of the compound of formula I to cyhalothrin to brown planthopper is greater than 80, and the compound of formula I and cyhalothrin show additive or synergistic effect; the mass ratio of the compound of formula I to cyhalothrin is 1:25-25:1, the co-toxicity coefficient of the compound of formula I to cyhalothrin to brown planthopper is greater than 130, and the synergistic effect is obvious; the mass ratio of the compound of formula I to cyhalothrin is 1:14-25:1, the co-toxicity coefficient of the compound of formula I to cyhalothrin to brown planthopper is greater than 150, and the synergistic effect is significant.

[0123] Table 3 The results of indoor toxicity bioactivity test of the compound of formula I and cyhalothrin to brown planthopper

[0124]

[0125] Field efficacy examples

[0126] Test crop and target: rice, rice planthopper;

[0127] Test site: Sunjiazhuang, Hongze District, Huai'an City, Jiangsu Province

[0128] Test time: August 22, 2024, cloudy weather, temperature 23-27℃.

[0129] Spraying equipment: backpack electric sprayer was used for uniform spraying at the base of rice stems and leaves once, first spraying water control plot, then spraying test pesticide plot, spraying head downward, as much as possible to spray the liquid to the base of rice stems; water consumption 675L / hm 2 .

[0130] Test environment: the cultivation conditions of all test plots were uniform, the same fertilizer and water management level was adopted, the rice grew well, and no fertilization, irrigation and other agricultural operations were conducted during the test period;

[0131] Test pesticide:

[0132] Table 4 Field test design and dosage

[0133]

[0134] Plot area and repetition: 4 times of repetition for each treatment, random block arrangement was adopted, plot area 30m 2 , guard rows were set between plots.

[0135] Investigation method: before spraying, the initial population of rice planthoppers was investigated, and after spraying, the residual live insect number was investigated once at 3d and 7d, 10 points were sampled in each plot according to parallel jumping method, 2 clumps of rice were investigated in each point, white porcelain plate with size of 20x33cm was used as carrier, a small amount of water was put in the plate, i.e. the number of planthopper population on 20 clumps of rice in each plot was investigated.

[0136] Calculation formula and data analysis:

[0137]

[0138] According to the reduction rate of rice planthopper population in pesticide treatment area and blank control area, the control effect was calculated. Duncan's new multiple range method in analysis software was used for significant difference analysis of population reduction rate and control effect.

[0139] Field efficacy test results:

[0140] The field control effects are shown in Table 5 and Table 6. On the 3rd day after treatment, the 45% compound I·flupyradifurone wettable powder (20:25), 20% compound I·metoxadiazone suspension concentrate (10:10), and 46% compound I·cyhalofop-butyl water dispersible granules (24:22) showed good quick-acting effects on the rice planthopper, with the control effects being 80.30%, 83.19%, and 84.68%, respectively. On the 7th day after treatment, the mixed formulations also showed good persistence, with the control effects being more than 90%, which were significantly higher than those of the single formulations, and the field control showed good quick-acting and persistent effects.

[0141] Table 5 Field control effects of different pesticides on rice planthopper (on the 3rd day after treatment)

[0142]

[0143] Note: The above control effect data are the average values of 4 repetitions, and the numerical values are retained to two decimal places.

[0144] Table 6 Field control effects of different pesticides on rice planthopper (on the 7th day after treatment)

[0145]

[0146] Note: The above control effect data are the average values of 4 repetitions, and the numerical values are retained to two decimal places.

[0147] Safety: It was observed that, compared with the blank control area, the test pesticide treatment did not cause phytotoxicity and other adverse effects on rice.

[0148] The pesticide composition or the preparation thereof obtained by compounding in the present application has a significant control effect, is superior to the single agent in terms of delaying the generation of resistance and prolonging the persistence, and does not cause phytotoxicity to crops in the test, which indicates that, in the case of the synergistic effect of the pesticide composition or the preparation thereof in killing insects, the production cost and use cost can be reduced, and the crops are safe.

[0149] Although the present application has been described in detail in the foregoing general description and examples, modifications and improvements to the present application will occur to those skilled in the art. These modifications and improvements are within the scope of the present application, which is not intended to be limited to the particular embodiments disclosed, but is intended to cover all embodiments falling within the scope of the present application. Accordingly, the present application is not limited to that precisely as shown and described.

Claims

1. A pesticidal composition, characterized by: comprising an active ingredient A which is a compound of formula (I) and an active ingredient B which is any one of flonicamid, nitenpyram, or chromafenozide.

2. The pesticidal composition according to claim 1, characterized in that: The mass ratio between the active ingredient A and the active ingredient B is 1:40-35:

1.

3. The pesticidal composition according to claim 1, characterized in that: The mass ratio of the compound of formula (I) to flupyradifurone is 1:27-22:1, the mass ratio of the compound of formula (I) to nitenpyram is 1:29-24:1, and the mass ratio of the compound of formula (I) to cyclaniliprole is 1:25-25:

1.

4. The pesticidal composition according to claim 3, characterized in that: The mass ratio of the compound of formula (I) to flupyradifurone is 1:18-12:1, the mass ratio of the compound of formula (I) to nitenpyram is 1:16-24:1, and the mass ratio of the compound of formula (I) to cyclaniliprole is 1:14-25:

1.

5. The pesticidal composition according to claim 1, characterized in that: The total content of the active ingredient A and the active ingredient B in the pesticide composition is 0.5%-90% based on the total mass of the pesticide composition being 100 wt%; Preferably, the total content of the active ingredient A and the active ingredient B in the pesticide composition is 5%-75%.

6. The pesticidal composition according to claim 1, characterized in that: The pesticide composition further comprises an agriculturally acceptable auxiliary ingredient in addition to the active ingredients, and the auxiliary ingredient is selected from one or more of wetting agents, dispersants, emulsifiers, thickening agents, disintegrants, antifreezing agents, antifoaming agents, solvents, preservatives, stabilizers, synergists or carriers.

7. The pesticidal composition according to claim 6, characterized in that: The pesticide composition is prepared into an agriculturally permissible formulation form, and the formulation form is selected from wettable powder, water dispersible granule, emulsifiable concentrate, water emulsion, microemulsion, suspension concentrate, suspoemulsion, dispersible oil suspension.

8. The use of the pesticide composition according to any one of claims 1-7 in the control of pests in agriculture, forestry and public health.

9. Use according to claim 8, characterized in that: The pests in agriculture, forestry and public health are pests of Hemiptera, Thysanoptera and Lepidoptera. Preferably, the pests in agriculture, forestry and public health are pests of Hemiptera.

10. The pesticidal composition according to claim 1, characterized in that: The pesticide composition is applied to pests in need of control or the medium where pests grow in an effective dose.

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