Pesticide composition and application thereof

Abstract

The invention belongs to the technical field of pesticide disinfestation, and discloses a pesticide composition and application thereof.The active ingredients of the pesticide composition comprise an active ingredient A and an active ingredient B. The active ingredient A is a compound shown in the formula (I), the ingredient B is any one selected from nitenpyram, ethiprole and dichlorothiopyrazine, and the active ingredient A is a compound shown in the formula (I). The mass ratio of the active component A to the active component B is (1: 50)-(42: 1). The pesticide composition disclosed by the invention has an excellent control effect on hemiptera pests in agriculture, forestry or gardening 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 most important food crops in the world. More than half of the world's population relies on rice as their main food source. Statistics from the Food and Agriculture Organization of the United Nations show that the global demand for rice is increasing. Rice planthoppers are important migratory pests in the rice production process. They have the characteristics of short generation cycle, high reproduction level, and strong ability to transmit viruses. As an important pest that harms rice production, they seriously affect rice yield and quality, causing significant economic losses to rice production every year.

[0003] Nitenpyram is a second-generation neonicotinoid insecticide that is mainly located in the central nervous system of insects, acting as a nerve blocker on the synaptic receptors of pests, expanding the diaphragm potential difference, reducing stimulation, and ultimately causing convulsions, paralysis, and even death in insects.

[0004] Ethiprole is a broad-spectrum insecticide of the pyrazole class. Its mechanism of action is to interfere with chloride ion channels through γ-aminobutyric acid (GABA), thereby disrupting the normal activities of the central nervous system (CNS) and killing insects. It acts by contact killing and is not systemic. It has control effects on a variety of chewing and piercing-sucking mouthparts pests of various 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 neurotransmission of target pests.

[0006] Ensuring stable, high and high yield of rice in my country is of great significance in national food security, economic development and social stability. Chemical control is currently the most simple, effective and economical control measure for rice planthoppers. However, due to the irrational use of chemical agents, rice planthoppers develop different degrees of resistance to various types of pesticides. In order to seek pesticides with higher activity and effectively solve the common problems of pest resistance and pesticide residues in current agricultural production, the inventors have studied and found that compounding the compound of formula (I) with any one of nitenpyram, ethiprole and dichlorothiapyrim can produce a synergistic effect, and there are no related reports on compounding the compound of formula (I) with any one of nitenpyram, ethiprole and dichlorothiapyrim. 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 used, 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 scheme: 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, ethidium, and dichlorothiapyrim;

[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, 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;

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

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

[0023] Furthermore, the solid preparation for direct use 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, a latex, a dispersible liquid or an ointment;

[0029] The emulsion preparation is a water emulsion, an oil emulsion, a microemulsion or a lipid 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] Further, 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 (bedhug), 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.) (blight bugs), Phytocoris californicus, Phytocoris relativus, Piezodorus guildingi, Poecilocapsus lineatus (fourlined plant bug), Psallus vaccinicola, Pseudacystaperseae, Scaptocoris castanea and Triatoma spp. (bloodsucking coneose bugs / 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(brownplanthopper), 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), Pscudococcus 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 (g 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 compounds compounds with different action mechanisms to delay the development of pesticide resistance of Hemiptera pests;

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

[0042] 3) The pesticide composition of the present invention reduces the dosage of pesticides, reduces the pollution of pesticide sources in rice fields, and ensures the yield and quality of rice. 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 the following specific embodiments, but the present invention can be implemented in various forms and should not be limited by the embodiments described herein.

[0044] Preparation Example

[0045] Preparation Example 1:

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

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

[0048] Auxiliary ingredients: 4.5% sodium dodecyl sulfate, 7% naphthalene sulfonate formaldehyde condensate, 2.5% pull open 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 the surfactant and other functional additives are added thereto, mixed, and after air flow grinding, 10-25% of water is added, and then the water-dispersible granule product is obtained by kneading, granulating, drying and sieving; 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% compound of formula (I)·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% pull open 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 dodecyl sulfate, 7% naphthalene sulfonate 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 98wt% passes through a 45μm test sieve to obtain a wettable powder.

[0060] Preparation Example 4:

[0061] 20% formula (Ⅰ) compound·ethithioprine suspension (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 to make 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 to mix evenly, and the suspension product is obtained by high-speed shearing, wet sand grinding, and finally homogenization filtration.

[0065] Preparation Example 5:

[0066] 28% compound of formula (I)·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 drug, ethiprole technical drug, dichlorothiapyrim technical drug, and technical drug of the compound of formula (I).

[0078] Test method: Take healthy, uniformly growing rice seedlings about 10 cm long, 15 plants as a group, wash and dry in a cool place for later use. Dissolve the test agent in a suitable solvent to prepare a mother solution of a certain concentration, and then dilute the mother solution with 0.1% Tween-80 aqueous solution to 5 series.

[0079] Soak the rice seedlings in the solution 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 put them into a disposable plastic cup. Put 10 standard 3rd instar nymphs into each cup 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] Check for death after 48 hours. Use a brush to touch the insect body. If it does not move at all, it is considered dead.

[0082] Calculation method:

[0083] According to 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, in units of heads;

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

[0089]

[0090] Where:

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

[0092] P t ——Treatment mortality rate, expressed as 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 Value, to evaluate the activity of the test agent on the biological test material.

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

[0097]

[0098] Where:

[0099] ATI——Actual 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 ——A: toxicity index of the agent;

[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——Actual Toxicity Index of Mixture;

[0113] TTI - Theoretical Toxicity Index of Mixture.

[0114] The co-toxicity coefficient of the combination CTC≥120 shows a synergistic effect; CTC≤80 shows an antagonistic effect; 80<CTC<120 shows an additive effect.

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

[0116] From the indoor test results in Table 1, it can be seen that the compound of formula (I) and nitenpyram are reasonably compounded to achieve a good control effect on brown planthoppers. When the mass ratio of the compound of formula (I) to nitenpyram is 1:25-32:1, the co-toxicity coefficient to brown planthoppers is greater than 120, showing a synergistic effect; when the mass ratio of the compound of formula (I) to nitenpyram is 1:18-32:1, the co-toxicity coefficient is greater than 150, and the synergistic effect is obvious.

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

[0118]

[0119] From the indoor test results in Table 2, it can be seen that the compound of formula (I) and ethiprole show good activity against brown planthoppers at a certain mass ratio. The mass ratio of the compound of formula (I) to ethiprole is 1:27-33:1, and the co-toxicity coefficient to brown planthoppers is greater than 120, showing a synergistic effect; the mass ratio of the compound of formula (I) to ethiprole is 1:27-16:1, and the co-toxicity coefficient is greater than 140, showing a significant synergistic effect.

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

[0121]

[0122]

[0123] From the indoor test results in Table 3, it can be seen that the compound of formula (I) and dichlorothiapyrimidine show good activity against brown planthoppers. The mass ratio of the compound of formula (I) to dichlorothiapyrimidine is 1:36-35:1, and the co-toxicity coefficient to brown planthoppers is greater than 120, showing a synergistic effect; the mass ratio of the compound of formula (I) to dichlorothiapyrimidine is 1:19-21:1, and the co-toxicity coefficient is greater than 130, showing a significant synergistic effect.

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

[0125]

[0126] Field efficacy test

[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 is above average, the soil is sandy loam, and the drainage and irrigation conditions are good, which is in line with local scientific agricultural practices. No other pesticides were used to control other pests and diseases 2 weeks before 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[Active ingredient application rate (g a.i / hm 2 )]]> 24% Formula (Ⅰ) compound·Nitenpyram wettable powder (20:4) 60 50% compound of formula (I)·ethiprole water dispersible granules (45:5) 60 28% compound of formula (I)·dichlorothiazide suspension (21:7) 60 24% formula (Ⅰ) compound·imidacloprid suspension (20:4) 200 50% compound of formula (I)·fipronil water dispersible granules (25:25) 200 28% Nitenpyram aqueous solution 30 100g / L Ethiopromide SC 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 around them.

[0135] Test method: On July 10, 2023, the pesticide was applied once at the end of rice tillering. At this time, the early nymphs of rice planthoppers in the field were in the beginning of their peak period. 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, the rice field should maintain a water layer of 3 to 5 cm deep.

[0136] Investigation method: The number of surviving rice planthoppers was investigated before application of pesticides and 3d and 14d after application of pesticides. Samples were taken at 10 points in each plot using the parallel jump method. 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 planthoppers in the pesticide-treated area and the blank control area.

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

[0138]

[0139]

[0140] Test results:

[0141] Post-treatment observations showed that rice in each treatment area grew normally, indicating that the test agent was safe for rice within its designed dosage range.

[0142] The test results (Table 5) show that 3 days after application, the control effects of 24% formula (I) compound·nitenpyram wettable powder (20:4), 50% formula (I) compound·ethionyl water dispersible granules (45:5), and 28% formula (I) compound·dichlorothiazide suspension (21:7) on rice planthoppers were 86.39%, 83.71%, and 84.98%, respectively. The control effects of the compound preparations were better than those of the single-dose control, indicating that the compound preparations were fast-acting and strong in efficacy.

[0143] Table 5 Results of the efficacy test of each treatment against rice planthoppers 3 days after application

[0144]

[0145] 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).

[0146] The test results (Table 6) show that 14 days after application, the control effect increased. The control effects of 24% formula (I) compound·nitrobenzene wettable powder (20:4), 50% formula (I) compound·ethithioprine water dispersible granules (45:5), and 28% formula (I) compound·dichlorothiapyrazone suspension (21:7) on rice planthoppers were 94.33%, 91.76%, and 92.75%, respectively. The effects were fast and long-lasting.

[0147] Table 6 Results of the efficacy test of each treatment against rice planthoppers 14 days after application

[0148]

[0149]

[0150] 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).

[0151] Although the present application describes specific implementations in detail by means of embodiments, the disclosed content of the present application may adopt various modifications and alternative forms. However, it should be understood that the disclosed content of the present application is not limited to the disclosed specific form. On the contrary, the disclosed content of the present application covers all modifications, equivalents and alternative forms within the scope of the disclosure of the present application, and the scope of the present application is limited by the attached claims and 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, wherein the active ingredient A is a compound of formula (I), and the structure of the compound of formula (I) is as follows: The component B is selected from any one of nitenpyram, ethidium, and dichlorothiapyr.

2. The pesticide composition according to claim 1, characterized in that The mass ratio of the active ingredient A to the active ingredient B is 1:50 to 42:1; preferably, the mass ratio of the active ingredient A to the active ingredient B is 1:36 to 35:

1.

3. The pesticide composition according to claim 2, characterized in that 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; 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; the active ingredient B is dichlorothiapyr, and the mass ratio of the active ingredient A to the active ingredient B is 1:36 to 35:

1.

4. 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.

5. 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.

6. The pesticide composition according to claim 1, characterized in that The pesticide composition is prepared into a formulation form permitted by pesticides, and the formulation form is a solid formulation or a liquid formulation.

7. The pesticide composition according to claim 6, characterized in that The solid preparation is a water-dispersible granule or a wettable powder; the liquid preparation is a suspension, a microemulsion, a dispersible oil suspension or an aqueous emulsion.

8. Use of the pesticide composition according to any one of claims 1 to 7 for controlling agricultural, horticultural or forestry pests.

9. The use according to claim 8, characterized in that: The pests are Hemiptera pests; preferably, the Hemiptera pests are whiteflies, rice planthoppers, and aphids.

10. The use according to claim 8, characterized in that: The pesticide composition or its preparation is applied to the pests to be controlled or the medium in which they grow.

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