A pesticide composition and its application

Abstract

The present invention belongs to the technical field of pesticide insecticides and discloses a pesticide composition and its use. The active ingredients of the pesticide composition include active ingredient A and active ingredient B, wherein active ingredient A is a compound of formula (I), and active ingredient B is selected from any one of nitenpyram, ethiprole, and dichlorothiapyr. The mass ratio of active ingredient A to active ingredient B is 1:50 to 42:1. The pesticide composition of the present invention has excellent control effects on Hemipteran pests in agricultural, forestry, or horticultural production.

Description

Technical Field

[0001] The invention belongs to the technical field of pesticide killing technology and discloses a pesticide composition and application thereof. Background Art

[0002] Rice is one of the world's most important food crops, with more than half of the world's population relying on it as their primary source of food. Data from the Food and Agriculture Organization of the United Nations indicates that global demand for rice is increasing. Rice planthoppers are a significant migratory pest in rice production, characterized by a short generation cycle, high reproductive capacity, and robust ability to transmit disease. As a major pest in rice production, they severely impact rice yield and quality, causing significant economic losses annually.

[0003] Nitenpyram is a second-generation neonicotinoid insecticide that is mainly located in the central nervous system of insects. It has a nerve blocking effect on the synaptic receptors of pests, expands the diaphragm position difference, reduces stimulation, and ultimately causes convulsions, paralysis, and even death in insects.

[0004] Ethiprole is a broad-spectrum pyrazole insecticide. Its mechanism of action is through gamma-aminobutyric acid (GABA) interference with chloride channels, thereby disrupting the normal function of the central nervous system (CNS) and killing insects. It acts by contact, not systemically. It is effective against a variety of chewing and piercing-sucking pests on a wide range of crops.

[0005] Dicloromezotiaz is a new type of mesoionic pyrimidinone insecticide. Unlike neonicotinoid insecticides, it acts on nicotinic acetylcholine receptors to exert insecticidal activity by blocking the neurotransmission of target pests.

[0006] Ensuring stable, high, and high-quality rice production in my country is of great significance to national food security, economic development, and social stability. Chemical control is currently the simplest, most effective, and most economical control measure for rice planthoppers. However, due to the irrational use of chemical agents, rice planthoppers have developed varying degrees of resistance to various types of insecticides. In order to seek insecticides with higher activity and to effectively address the common pest resistance and pesticide residue problems in current agricultural production, the inventors have found that compounding the compound of formula (I) with any one of nitenpyram, ethiprole, and dichlorothiapyr can produce a synergistic effect. However, there are no reports on compounding the compound of formula (I) with any one of nitenpyram, ethiprole, and dichlorothiapyr. Summary of the Invention

[0007] In order to solve the above problems existing in the prior art, the present invention provides a pesticide composition and its application, which has excellent control effects on various pests in agriculture, horticulture and forestry, reduces the dosage of pesticides, and slows down the development of pest resistance.

[0008] In addition, the present invention also provides the use of the pesticide composition for preventing and controlling Hemiptera pests.

[0009] In order to achieve the above object, the present invention adopts the following technical solution: a pesticide composition, wherein the active ingredients of the pesticide composition include active ingredient A and active ingredient B, wherein the active ingredient A is a compound of formula (I), and the structure of the compound of formula (I) is as follows:

[0010] The component B is selected from any one of nitenpyram, ethiprole, and dichlorothiapyr;

[0011] Furthermore, the mass ratio of the active ingredient A to the active ingredient B is 1:50 to 42:1;

[0012] Furthermore, the mass ratio of the active ingredient A to the active ingredient B is 1:36 to 35:1;

[0013] Furthermore, the active ingredient B is nitenpyram, and the mass ratio of the active ingredient A to the active ingredient B is 1:25 to 32:1, such as 1:25, 1:18, 1:6, 5:3, 6:1, 13:1, 32:1 or any value between the above values;

[0014] Furthermore, the active ingredient B is nitenpyram, and the mass ratio of the active ingredient A to the active ingredient B is 1:18 to 32:1;

[0015] Furthermore, the active ingredient B is ethiprole, and the mass ratio of the active ingredient A to the active ingredient B is 1:27 to 33:1, such as 1:27, 1:14, 1:7, 15:2, 16:1, 33:1 or any value between the above values;

[0016] Furthermore, the active ingredient B is ethiprole, and the mass ratio of the active ingredient A to the active ingredient B is 1:27 to 16:1;

[0017] Furthermore, the active ingredient B is dichlorothiazide, and the mass ratio of the active ingredient A to the active ingredient B is 1:36 to 35:1, such as 1:36, 1:19, 1:7, 2:3, 4:1, 8:1, 21:1, 35:1 or any value between the above values;

[0018] Furthermore, the active ingredient B is dichlorothiazide, and the mass ratio of the active ingredient A to the active ingredient B is 1:19 to 21:1;

[0019] Furthermore, the total weight of the pesticide composition is 100 wt%, and the total weight of the active ingredient A and the active ingredient B accounts for 0.01% to 80% of the total weight of the pesticide composition;

[0020] Furthermore, the pesticide composition contains, in addition to the active ingredient, auxiliary ingredients permitted in pesticides, wherein the auxiliary ingredients are selected from one or more of wetting agents, dispersants, emulsifiers, thickeners, disintegrants, antifreeze agents, defoaming agents, solvents, preservatives, stabilizers, synergists or carriers;

[0021] Furthermore, the pesticide composition is prepared into a formulation form permitted in pesticides, and the formulation form is a solid preparation or a liquid preparation;

[0022] Furthermore, the solid preparation is a direct-use solid preparation, a dispersible solid preparation or a soluble solid preparation;

[0023] Furthermore, the directly-used solid preparation is a powder, granule, pellet, tablet or strip;

[0024] The dispersible solid preparation is a wettable powder, an oil-dispersible powder, an emulsion powder, a water-dispersible granule, an emulsion granule or a water-dispersible tablet;

[0025] The soluble solid preparation is a soluble powder, a soluble tablet or a soluble granule;

[0026] Furthermore, the liquid preparation is a solution preparation, a dispersed liquid preparation, an emulsion preparation, a suspension preparation or a multiphase preparation;

[0027] Furthermore, the solution preparation is a soluble solution, a soluble gel, an oil or a film-spreading oil;

[0028] The dispersed liquid preparation is an emulsifiable concentrate, latex, dispersible liquid or ointment;

[0029] The emulsion preparation is a water emulsion, an oil emulsion, a microemulsion or a fat preparation;

[0030] The suspension preparation is a suspension concentrate, a microcapsule suspension concentrate, an oil suspension concentrate or a dispersible oil suspension concentrate;

[0031] The multiphase preparation is a suspoemulsion, a microcapsule suspension-suspension concentrate, a microcapsule suspension-water emulsion or a microcapsule suspension-suspoemulsion;

[0032] Furthermore, the solid preparation is a water dispersible granule or a wettable powder;

[0033] Furthermore, the liquid preparation is a suspension, a microemulsion, a dispersible oil suspension or an aqueous emulsion.

[0034] The present invention also discloses the use of the above pesticide composition for preventing and controlling agricultural, horticultural or forestry pests;

[0035] Furthermore, the pests are Hemiptera pests;

[0036] Furthermore, the Hemiptera pests include, but are not limited to, stink bugs: Acrosternum hilare (green stink bug), Blissus leucopterus (chinch bug), Calocoris norvegicus (potato mirid), Cimex hemipterus (tropical bed bug), Cimex lectularius (bedhugger), Daghertus fasciatus, Dichelops furcatus, Dysdercus suturellus (cotton stainer), Edessa meditabunda, Eurygaster maura (cereal bug), Euschistus heros, Euschistus servus) (brown stinkbug), Helopeltis antonii, Helopeltis theivora (tea blightplantbug), Lagynotomus spp. stinkbugs, Leptocorisa oratorius, Leptocorisa varicornis, Lygus spp. (plant bugs), Lygus hesperus (western tarnished plant bug), Maconellicoccushirsutus, Neurocolpus longirostris, Nezara viridula (southern greenstinkbug), PhyLocoris spp.) (lygus), Phytocoris californicus, Phytocoris relativus, Piezodorus guildingi, Poecilocapsus lineatus (fourlined plant bug), Psallus vaccinicola, Pseudacystaperseae, Scaptocoris castanea and Triatoma spp. (bloodsucking conenoses / kissing bugs), Acrythosiphonpisum (pea aphid), Adelges spp. (adelgids), Aleurodes proletella (cabbage whitefly), Aleurodicus disperses, Aleurothrixus flccosus (woolly whitefly) (whitefly), Aluacaspis spp., Amrasca bigutella bigutella, Aphrophora spp. (leahopper), Aonidiella aurantii (California redscale), Aphis spp. (aphids), Aphis gossypii (cotton aphid), Aphis pomi (apple aphid), Aulacorthitm solani (foxglove aphid), Bemisia spp. (whitefly), Bemisia argentifolii, Bemisia tabaci (sweetpotato whitefly), Brachycolus noxius (Russian aphid), aphid), Brachycorynclia asparagi (asparagus aphid), Brevennia rehi, Brevicoryne brassicae (cabbage aphid), Ceroplastes spp.) (scale), Ceroplastes rubens (red wax scale), Chionaspis spp. (scale), Chrysomphalus spp. (scale), Coccus spp. (scale), Dysaphis plantaginea (rosy apple aphid), Empoasca spp. (leafhopper), Eriosomalanigerum (woolly apple aphid), Icerya purchasi (cottony cushion scale), Idioscopus nitidulus (mango leafhopper), Laodelphax striatellus (smaller brown planthopper), Lepidosaphes spp., Macrosiphum spp.), Macrosiphum euphorbiae (potato aphid), Macrosiphum granarium (English grain aphid), Macrosiphum rosae (rose aphid), Macrosteles quadrilineatus (asterleafhopper), Mahanarva frimbiolata, Metopolophium dirhodum (rose grain aphid), Midis longicornis, Myzus persicae (green peach aphid), Nephotettix spp.) (leafhopper), Nephotettix cinctipes (green leafhopper), Nilaparvata lugens (brown planthopper), Parlatoria pergandii (chaff scale), Parlatoria ziziphi (ebonyscale), Peregrinus maidis (corndelphacid), Philaenus spp. (blowing insects), Phylloxera vitifoliae (grape phylloxera), Physokermes piceae (spruce budscale), Planococcus spp. (mealybugs), Pseudococcus spp. (mealybugs), Pseudococcus brcvipcs (pinc apple mealybugs) mcalybug), Quadraspidiotus perniciosus (San Jose scale), Rhapalosiphum spp. (aphids), Rhapalosiphum maida (corn leaf aphid), Rhapalosiphum padi (oatbird-cherry aphid), Saissetia spp. (scale), Saissetiaoleae (black scale), Schizaphis graminum (gr eenbug), Sitobion avenge (British wheat aphid), Sogatella furcifera (white-backed planthopper), Therioaphis spp. (aphids), Toumeyella spp. (scale), Toxoptera spp. (aphids), Trialeurodes spp.) (whitefly), Trialeurodes vaporariorum (greenhouse whitefly), Trialeurodes abutiloneus (bandedwing whitefly), Unaspis spp. (scale), Unaspis yanonensis (arrowhead scale), and Zulia entreriana.

[0037] In particular, the pesticide composition of the present invention has excellent control effects on whiteflies, rice planthoppers, and aphids, and exhibits a synergistic effect within the mass ratio range described above;

[0038] Furthermore, the above-mentioned pesticide composition or its formulation is applied to the pests to be controlled or the medium in which they grow.

[0039] The beneficial effects of the present invention are as follows:

[0040] 1) The pesticide composition of the present invention rationally combines compounds with different mechanisms of action to delay the development of pesticide resistance in Hemipteran pests;

[0041] 2) The pesticide composition of the present invention has excellent control effects on Hemiptera pests and has a synergistic effect;

[0042] 3) The pesticide composition of the present invention reduces the dosage of pesticides, reduces the source of pesticide pollution in rice fields, and ensures rice yield and quality safety. DETAILED DESCRIPTION

[0043] In order to make the technical solutions, objectives and advantages of the present invention more clearly understood, the present invention is described with reference to the following specific embodiments. However, the present invention can be implemented in various forms and should not be limited to the embodiments described herein.

[0044] Preparation Example

[0045] Preparation Example 1:

[0046] 30% formula (Ⅰ) compound·nitenpyram water dispersible granules (26:4)

[0047] Active ingredients: 26% compound of formula (I), 4% nitenpyram;

[0048] Auxiliary ingredients: 4.5% sodium lauryl sulfate, 7% naphthalene sulfonate formaldehyde condensate, 2.5% ripple powder BX, 6.5% lignin sulfonate (RXB), 5% attapulgite, 10% white carbon black, kaolin makes up the balance;

[0049] Preparation method: According to the formula ratio, the active ingredient is added to the carrier, and surfactants and other functional additives are added thereto, mixed, and after air flow grinding, 10-25% water is added, and then kneading, granulation, drying, and screening are carried out to obtain a water-dispersible granule product; or the crushed powder is sprayed with water in a boiling granulator, granulated, dried, and then sieved to obtain the product.

[0050] Preparation Example 2:

[0051] 50% formula (Ⅰ) compound and ethiprole water dispersible granules (45:5)

[0052] Active ingredients: 45% compound of formula (I), 5% ethiprole;

[0053] Auxiliary ingredients: 7% naphthalene sulfonate formaldehyde condensate, 2.5% flaking powder BX, 2.5% α-olefin sulfonate, 8.5% lignin sulfonate (RXB), 5% white sugar, kaolin makes up the balance;

[0054] Preparation method: Same as Preparation Example 1.

[0055] Preparation Example 3:

[0056] 24% formula (Ⅰ) compound·nitenpyram wettable powder (20:4)

[0057] Active ingredients: 20% compound of formula (I), 4% nitenpyram;

[0058] Auxiliary ingredients: 2% sodium lauryl sulfate, 7% naphthalenesulfonate formaldehyde condensate, 3% polycarboxylic acid sodium salt, 10% white carbon black, kaolin makes up the balance;

[0059] Preparation method: pre-crush and mix evenly, then grind by air flow mill to a fineness that satisfies the requirement that at least 98 wt% passes through a 45 μm test sieve to obtain a wettable powder.

[0060] Preparation Example 4:

[0061] 20% formula (I) compound and ethiprole suspension concentrate (18.5:1.5)

[0062] Active ingredients: 18.5% compound of formula (I), 1.5% ethiprole;

[0063] Auxiliary ingredients: 1.5% sodium lignin sulfonate, 4% alkylphenol polyoxyethylene ether phosphate, 1% phosphate (FS3000), 5% arylphenol polyoxyethylene ether, 1% naphthalene sulfonate, 1% magnesium aluminum silicate, 0.02% xanthan gum, 5% ethylene glycol, 0.1% sodium benzoate, 0.5% silicone defoamer, and deionized water makes up the balance;

[0064] Preparation method: According to the formula ratio, the active ingredients, surfactants and other functional additives are placed in a reactor in sequence, water is added and mixed evenly, and the suspension product is obtained by high-speed shearing, wet sand grinding, and finally homogenization filtration.

[0065] Preparation Example 5:

[0066] 28% formula (Ⅰ) compound·dichlorothiazide suspension (21:7)

[0067] Active ingredients: 21% compound of formula (I), 7% dichlorothiazide;

[0068] Auxiliary ingredients: 1.5% EO-PO block copolymer, 5% arylphenol polyoxyethylene ether phosphate, 1.5% sodium lignin sulfonate, 1% magnesium aluminum silicate, 0.2% xanthan gum, 5% ethylene glycol, 0.1% sodium benzoate, 0.5% silicone oil, and deionized water to make up the balance;

[0069] Preparation method: same as Preparation Example 4.

[0070] Preparation Example 6:

[0071] 16% compound of formula (I)·dichlorothiazide dispersible oil suspension (13:3)

[0072] Active ingredients: 13% compound of formula (I), 3% dichlorothiazide;

[0073] Auxiliary ingredients: 1.5% alkylnaphthalene sulfonate formaldehyde condensate, 10% castor oil polyoxyethylene ether, 3% fatty alcohol polyoxyethylene ether, 1.5% sodium lignin sulfonate, 0.5% organosilicon defoamer, 0.5% organobentonite, and soybean oil makes up the balance;

[0074] Preparation method: According to the formula ratio, the active ingredients, surfactants and other functional additives are placed in the reactor in sequence, oil is added and mixed evenly, and the dispersible oil suspension product is obtained by high-speed shearing, wet sand grinding, and finally homogenization filtration.

[0075] Indoor biological activity

[0076] Test target: Brown planthopper (Nilaparvatalugens).

[0077] Test agents: nitenpyram technical, ethiprole technical, dichlorothiapyrim technical, and the technical of the compound of formula (I).

[0078] Test Method: Group 15 healthy, uniformly growing rice seedlings approximately 10 cm in length. Wash and air-dry in a cool, dry place. Dissolve the test agent in a suitable solvent to create a stock solution of a desired concentration. Dilute the stock solution with a 0.1% Tween-80 solution to a series of five concentrations.

[0079] Soak the rice seedlings in the liquid for 30 seconds, then take them out and dry them. Wrap the roots of the rice seedlings with absorbent cotton, soak the bottom in water and place them in a disposable plastic cup. Inoculate each cup with 10 standard 3rd-instar mid-nymphs and seal it with gauze. Repeat each treatment 4 times, and use 0.1% Tween-80 aqueous solution as a blank control.

[0080] After inoculation, the fish were placed in an intelligent artificial climate box with a temperature of (28±1)°C, a relative humidity of 75%±5%, and a photoperiod of 16L:8D for cultivation.

[0081] After 48 hours, check for death by lightly touching the insect body with a brush. Those that are completely motionless are considered dead.

[0082] Calculation method:

[0083] Based on the survey data, calculate the mortality rate of each treatment. Calculate as follows:

[0084]

[0085] Where:

[0086] P——mortality rate, in percentage (%);

[0087] K——indicates the number of dead insects, the unit is head;

[0088] N——represents the total number of insects processed, in heads.

[0089]

[0090] Where:

[0091] P1——adjusted mortality rate, in percentage (%);

[0092] P t ——Treatment mortality rate, expressed in percentage (%);

[0093] P0 - blank control mortality rate, in percentage (%).

[0094] If the control mortality rate is less than 5%, no correction is required; if the control mortality rate is between 5% and 20%, correction should be made according to the correction mortality formula; if the control mortality rate is greater than 20%, the test needs to be repeated.

[0095] The DPS statistical analysis system was used to analyze the toxicity regression equation, correlation coefficient and LC 50 The activity of the test agent on the biological test material is evaluated by the value.

[0096] The co-toxicity coefficient (CTC value) of the mixture is calculated as follows:

[0097]

[0098] Where:

[0099] ATI - measured toxicity index of mixture;

[0100] S——LC of standard pesticide 50 , the unit is milligrams per liter (mg / L);

[0101] M——LC of the mixture 50 , the unit is milligrams per liter (mg / L).

[0102] TTI=TI A ×P A +TI B ×P B

[0103] Where:

[0104] TTI – Theoretical Toxicity Index of Mixtures;

[0105] TI A ——Agent toxicity index;

[0106] P A ——The percentage of agent A in the mixture, in percentage (%);

[0107] TI B ——Toxicity index of agent B;

[0108] P B ——The percentage of agent B in the mixture, in percentage (%).

[0109]

[0110] Where:

[0111] CTC – Co-toxicity coefficient;

[0112] ATI - measured toxicity index of mixture;

[0113] TTI - Theoretical Toxicity Index of Mixture.

[0114] A co-toxicity coefficient (CTC) of 120 or higher indicates a synergistic effect; a co-toxicity coefficient (CTC) of 80 or lower indicates an antagonistic effect; and a co-toxicity coefficient (CTC) of 80 or lower indicates an additive effect.

[0115] The indoor test results are shown in the table below:

[0116] The indoor test results in Table 1 show that a reasonable combination of the compound of formula (I) and nitenpyram has a good control effect on brown planthoppers. When the mass ratio of the compound of formula (I) to nitenpyram is 1:25 to 32:1, the co-toxicity coefficient against brown planthoppers is greater than 120, showing a synergistic effect. When the mass ratio of the compound of formula (I) to nitenpyram is 1:18 to 32:1, the co-toxicity coefficient is greater than 150, indicating a significant synergistic effect.

[0117] Table 1 Results of indoor biological activity test on the compound of formula (I) and nitenpyram against brown planthopper

[0118]

[0119] As shown in the laboratory test results in Table 2, the compound of formula (I) and ethiprole exhibited good activity against brown planthoppers at certain mass ratios. When the mass ratio of the compound of formula (I) to ethiprole was 1:27 to 33:1, the co-toxicity coefficient against brown planthoppers was greater than 120, indicating a synergistic effect. When the mass ratio of the compound of formula (I) to ethiprole was 1:27 to 16:1, the co-toxicity coefficient was greater than 140, indicating a significant synergistic effect.

[0120] Table 2 Results of indoor biological activity test on the compound of formula (I) and ethiprole against brown planthopper

[0121]

[0122]

[0123] As shown in the laboratory test results in Table 3, the combination of the compound of formula (I) and dichlorothiapyrimidine exhibited good activity against brown planthoppers. When the mass ratio of the compound of formula (I) to dichlorothiapyrimidine was 1:36 to 35:1, the co-toxicity coefficient against brown planthoppers was greater than 120, indicating a synergistic effect. When the mass ratio of the compound of formula (I) to dichlorothiapyrimidine was 1:19 to 21:1, the co-toxicity coefficient was greater than 130, indicating a significant synergistic effect.

[0124] Table 3 Results of indoor biological activity test on the compound of formula (I) and dichlorothiazide against brown planthoppers

[0125]

[0126] Field efficacy trials

[0127] Example 3: Field efficacy test for controlling rice planthoppers

[0128] Test location: Rice fields in Anyang Town, Hechi County, Guangxi,

[0129] Test site conditions: Soil fertility was above average, sandy loam, and irrigation and drainage conditions were good, consistent with local scientific agricultural practices. No other pesticides were used to control pests and diseases during the two weeks prior to and during the test.

[0130] Test targets: Rice planthopper (brown planthopper is the main species);

[0131] Experimental setup and dosage:

[0132] Table 4 Experimental treatments

[0133] deal with <![CDATA[Application rate of active ingredient (g a.i / hm 2 )]]> 24% formula (Ⅰ) compound·nitenpyram wettable powder (20:4) 60 50% formula (Ⅰ) compound and ethiprole water dispersible granules (45:5) 60 28% formula (Ⅰ) compound·dichlorothiazide suspension (21:7) 60 24% formula (Ⅰ) compound·imidacloprid suspension concentrate (20:4) 200 50% Formula (I) compound·Fipronil water dispersible granules (25:25) 200 28% Nitenpyram aqueous solution 30 100 g / L ethiprole suspension concentrate 45 25% dichlorothiazide suspension 60 24% suspension of compound of formula (I) 300 Clear water control -

[0134] Experimental setup: 4 replicates per treatment, randomized block arrangement, each plot area 25m 2 The areas are separated by ridges and protected by rows of fences.

[0135] Test method: On July 10, 2023, at the end of rice tillering, the pesticide was applied once. At this time, the newly hatched young nymphs of rice planthoppers in the field began to appear. A Linong HD-400 manual sprayer was used to evenly spray the base of rice stems and leaves once, with a water consumption of 675L / hm2. 2 After applying the pesticide, keep a 3-5 cm deep water layer in the rice field.

[0136] Investigation method: The number of surviving rice planthoppers was investigated before application of pesticides and 3 days and 14 days after application; sampling was carried out at 10 points in each plot using the parallel jump method, and two rice bushes were investigated at each point. The rice bushes were patted and the number of planthoppers floating on the water surface between the rice bushes was counted. The control effect was calculated based on the reduction rate of rice planthopper population in the pesticide-treated area and the blank control area.

[0137] Calculation method for the efficacy of pesticides for controlling rice planthoppers:

[0138]

[0139] Test results:

[0140] Post-treatment observations showed that rice in each treatment area grew normally, indicating that the test agent was safe to rice within its designed dosage range.

[0141] The test results (Table 5) show that three days after application, the control efficacy of 24% formula (I) compound nitenpyram wettable powder (20:4), 50% formula (I) compound ethiprole water-dispersible granules (45:5), and 28% formula (I) compound dichlorothiapyr suspension concentrate (21:7) against rice planthoppers was 86.39%, 83.71%, and 84.98%, respectively. The control efficacy of the combined formulations was superior to that of the single-dose control, demonstrating that the combined formulations are fast-acting and highly effective.

[0142] Table 5 Results of the efficacy test on each treatment for controlling rice planthoppers 3 days after application

[0143]

[0144] Note: The above insect population base and control efficacy data are the average of 4 replicates, and the values ​​are rounded to two decimal places. Different letters after the control efficacy data in the same column indicate significant differences (P < 0.05).

[0145] The test results (Table 6) show that 14 days after application, the control effect increased. The control effects of 24% formula (I) compound·nitenpyram wettable powder (20:4), 50% formula (I) compound·ethithioprine water dispersible granules (45:5), and 28% formula (I) compound·dichlorothiazolin suspension concentrate (21:7) on rice planthoppers were 94.33%, 91.76%, and 92.75%, respectively. The effects were fast and long-lasting.

[0146] Table 6 Results of the efficacy test of each treatment against rice planthoppers 14 days after application

[0147]

[0148]

[0149] Note: The above insect population base and control efficacy data are the average of 4 replicates, and the values ​​are rounded to two decimal places. Different letters after the control efficacy data in the same column indicate significant differences (P < 0.05).

[0150] Although this application describes specific embodiments in detail with the aid of examples, the disclosure of this application may adopt various modifications and alternative forms. However, it should be understood that the disclosure of this application is not limited to the specific forms disclosed. On the contrary, the disclosure of this application covers all modifications, equivalents and alternative forms within the scope of this application, and the scope of this application is limited by the appended claims and their legal equivalents.

Claims

1. A pesticide composition, characterized in that The active ingredients of the pesticide composition include active ingredient A and active ingredient B. The active ingredient A is a compound of formula (I). The structure of the compound of formula (I) is shown below: Formula (I), wherein the component B is selected from any one of nitenpyram, ethiprole, and dichlorothiapyr; the mass ratio of the compound of formula (I) to nitenpyram is 1:25-32:1; the mass ratio of the compound of formula (I) to ethiprole is 1:27-33:1; and the mass ratio of the compound of formula (I) to dichlorothiapyr is 1:36-35:

1.

2. The pesticide composition according to claim 1, characterized in that The mass ratio of the compound of formula (I) to nitenpyram is 1:25, 1:18, 1:6, 5:3, 6:1, 13:1, and 32:1; the mass ratio of the compound of formula (I) to ethiprole is 1:27, 1:14, 1:7, 15:2, 16:1, and 33:1; and the mass ratio of the compound of formula (I) to dichlorothiapyr is 1:36, 1:19, 1:7, 2:3, 4:1, 8:1, 21:1, and 35:

1.

3. The pesticide composition according to claim 1, characterized in that The total weight of the pesticide composition is 100 wt%, and the total weight of the active ingredient A and the active ingredient B accounts for 0.01% to 80% of the total weight of the pesticide composition.

4. The pesticide composition according to claim 1, characterized in that In addition to the active ingredients, the pesticide composition also contains auxiliary ingredients allowed in pesticides, and the auxiliary ingredients are selected from one or more of wetting agents, dispersants, emulsifiers, thickeners, disintegrants, antifreeze agents, defoaming agents, solvents, preservatives, stabilizers, synergists or carriers.

5. The pesticide composition according to claim 1, characterized in that The pesticide composition is prepared into a formulation form permitted in pesticides, and the formulation form is water-dispersible granules, wettable powders, suspensions or dispersible oil suspensions.

6. Use of the pesticide composition according to any one of claims 1 to 5 for controlling agricultural, horticultural or forestry pests, characterized in that: The pest is rice planthopper.

7. The use according to claim 6, characterized in that The pesticide composition is applied to the pests to be controlled or the medium in which they grow.

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