An insecticide composition

Abstract

The present invention relates to an insecticide composition, which contains active ingredients of a compound of formula I and a compound II, wherein the compound II is selected from at least one of cypermethrin, isoprocarb, cypermethrin, cyantraniliprole, buprofezin, pymetrozine, dinotefuran, acetamiprid, thiacloprid, clothianidin, indoxacarb, avermectin, ivermectin, spirotetramat, sulfoxaflor, pyriproxyfen, diafenthiuron, bifenthrin, and ethofenprox. The present invention also relates to the use of the insecticide composition for preventing or controlling pests of Aphididae, Psyllidae, Cicadidae, Whitefly, and Coccidae.

Description

[0001] This application is a divisional application with application number 201910553239.4, application date June 25, 2019, and invention name “A pesticidal composition”. Technical Field

[0002] The present invention relates to an insecticidal composition which is highly effective in controlling animal pests. Background Art

[0003] The most typical problem in animal pest control is the need to reduce the dosage rate of the active ingredient to reduce or avoid adverse environmental or toxicological effects while still providing effective animal pest control.

[0004] Another difficulty in pest control is that the repeated and exclusive use of a single insecticidal active ingredient in many cases leads to the rapid selection of pests that develop natural or adapted resistance to the active ingredient.

[0005] Due to the multiple generations and adaptability of pests, pest resistance is developed in a relatively short period of time. There is also a need for pest control agents that act on pests and their larvae and eggs, and that have excellent permeability.

[0006] In addition, in pest control, there is a need to combine knockdown activity with extended control time, i.e., rapid action and long-lasting action.

[0007] The active ingredients of the formula I are known from WO 2006 / 129714 and belong to the group of pyripropene derivatives.

[0008] Summary of the invention

[0009] The object of the present invention is to provide an insecticidal composition that solves at least one of the problems such as improved biological properties, providing synergistic properties, reducing dosage rates, expanding the spectrum of activity, combining knockdown activity and long-lasting action, resistance management to delay resistance.

[0010] The present invention unexpectedly found that the combination of the compound of formula I and compound II can effectively prevent or control animal pests and their larvae and eggs. Surprisingly, it has been found that the simultaneous (i.e., combined or separate) application of the active compound compound of formula I and compound II or the sequential application of the compound of formula I and compound II results in an enhanced pest control effect compared to the possible control rate of the individual compounds, and this unexpected effect is a true synergistic effect, rather than just the addition of activity.

[0011] An insecticide composition of the present invention is implemented by the following technical scheme:

[0012] A pesticidal composition, comprising active ingredients of a compound of formula I and a compound II, wherein the compound II is selected from one of the following compounds: cypermethrin, isoprocarb, cypermethrin, cyantraniliprole, buprofezin, pymetrozine, acetamiprid, thiacloprid, clothianidin, indoxacarb, avermectin, ivermectin, spirotetramat, sulfoxaflor, pyriproxyfen, dinotefuran, diafenthiuron, bifenthrin, and ethomethrin.

[0013] The compound II is selected from mefenamic acid or isoprocarb.

[0014] The compound II is selected from cyantraniliprole.

[0015] The compound II is selected from thiazolinone.

[0016] The compound II is selected from pymetrozine.

[0017] The compound II is selected from acetamiprid, thiacloprid, clothianidin or dinotefuran.

[0018] The compound II is selected from indoxacarb.

[0019] The compound II is selected from parathion.

[0020] The compound II is selected from avermectin or ivermectin.

[0021] The compound II is selected from spirotetramat.

[0022] The compound II is selected from pyriproxyfen.

[0023] The compound II is selected from sulfoxaflor.

[0024] The compound II is selected from diafenthiuron.

[0025] The compound II is selected from bifenthrin or ethomethrin.

[0026] The weight ratio of the compound of formula I to compound II is 10:1-1:150, preferably 1:5-1:150, preferably 1:10-1:150, preferably 1:10-1:100, further preferably 1:10-1:80, even more preferably 1:10-1:70, and even more preferably 1:10-1:50, to obtain a synergistic effect.

[0027] The weight ratio of the compound of formula I and compound II described in the present invention can also be, for example, 10:1, 5:1, 1:1, 1:5, 1:10, 1:15, 1:20, 1:25, 1:30, 1:35, 1:40, 1:45, 1:50, 1:55, 1:60, 1:65, 1:70, 1:75, 1:80, 1:85, 1:90, 1:95, 1:100, 1:110, 1:120, 1:130, 1:140, 1:150.

[0028] A pesticidal composition comprising active compounds of formula I and compound II, wherein the weight of the compound of formula I and compound II together accounts for 1%-90% by weight of the pesticidal composition, preferably 5%-80%, more preferably 5%-70%, further preferably 5%-60%, more preferably 5%-50%.

[0029] An insecticidal composition comprising active compounds of formula I and compound II, wherein the weight of the compound of formula I and compound II in total accounts for 1%, 2%, 3%, 4%, 5%, 6%, 7%, 8%, 9%, 10%, 11%, 12%, 13%, 14%, 15%, 16%, 17%, 18%, 19%, 20%, 21%, 22%, 23%, 24%, 25%, 26%, 27%, 28%, 29%, 30%, 35%, 40%, 45%, 50%, 55%, 60%, 65%, 70%, 75%, 80%, 85%, or 90% of the weight of the insecticidal composition.

[0030] A pesticidal composition comprising active ingredients of a compound of formula I and a compound II, and further comprising a surfactant and / or a filler.

[0031] The insecticide composition of the present invention has the following dosage forms: emulsifiable concentrate, water suspension, oil suspension, seed treatment dry powder, seed treatment suspension, water dispersible granules, wettable powder, suspoemulsion, aerosol, coated granules, extruded granules, water emulsion, microcapsule suspension, microcapsule suspension-suspension, dry suspension, ultra-low volume liquid, electrostatic oil, gel, granule and microgranule.

[0032] The insecticidal composition of the present invention can be applied undiluted or diluted with water.

[0033] The insecticidal composition of the present invention unexpectedly exhibits extremely high activity in preventing or controlling pests and their larvae and eggs in treating plants, plant propagation materials, and soil in which plants grow.

[0034] The insecticidal composition of the present invention has excellent controlling efficacy on pests and their larvae and eggs at a low dosage.

[0035] In another aspect, the present invention also provides a use of an insecticidal composition for preventing or controlling pests and their larvae and eggs.

[0036] In particular, the present invention provides an insecticidal composition for preventing or controlling pests of the family Aphididae, Psyllidae, Cicadidae, Whitefly, and Coccidae.

[0037] More particularly, the present invention provides an insecticidal composition for preventing or controlling tobacco aphid, cotton aphid, peach aphid, tea green leafhopper, black-tailed leafhopper, whitefly, greenhouse whitefly, pear psyllid, citrus psyllid, scale insect pests and their larvae and eggs.

[0038] The insecticide composition of the present invention is used for treating seeds to prevent the seeds from being attacked by pests.

[0039] The insecticide composition of the present invention can be applied to seeds, plants or fruits of plants or soil where plants grow or soil suitable for plant growth.

[0040] In another aspect, the present invention also provides a method for preventing or controlling pests and their larvae and eggs, wherein the pesticidal composition of the present invention is applied to target useful plants, target pests or their environment, or propagation materials of target useful plants. The plant propagation materials are seedlings, rhizomes, nursery seedlings, cuttings or seeds.

[0041] A method for preventing or controlling pests and their larvae and eggs, comprising applying the pesticidal composition of the present invention to seeds, target useful plants or soil where plants grow or soil suitable for plant growth.

[0042] A method for preventing or controlling pests and their larvae and eggs, comprising applying the pesticidal composition of the present invention to the soil before, after or before or after seed germination and / or directly applying it to the soil in contact with plant roots or soil suitable for plant growth.

[0043] A method for protecting seeds comprises contacting the seeds with an insecticidal effective amount of the insecticidal composition of the present invention before sowing and / or after germination.

[0044] The plants include: stems and leaves of plants, flowers of plants, fruits of plants, etc.

[0045] The seeds are selected from soybean, wheat, barley, rye, sorghum, peanut, sunflower, sugarcane, tobacco, rice, rapeseed, pakchoi, cabbage, beet, tomato, cowpea, carrot, cotton and corn seeds.

[0046] A method for preventing or controlling pests, comprising applying a compound of formula I and a compound II separately, sequentially or simultaneously.

[0047] The pesticidal composition of the present invention can be applied in any desired manner, such as seed coating, soil drench and / or direct furrow application and / or foliar spraying, and can be applied before germination, after germination or before and after germination.

[0048] The present invention provides an insecticidal composition containing active ingredients of formula I compound and compound II, solving at least one problem such as improving biological properties, providing synergistic properties, reducing dosage rates, expanding activity spectrum, combining knockdown activity and long-lasting effects, and managing resistance to delay resistance. The combination of formula I compound and compound II can effectively prevent or control animal pests and their larvae and eggs. Compared with the possible control rate of each compound, the simultaneous (i.e., combined or separate) application of active compounds formula I compound and compound II or the sequential application of formula I compound and compound II results in an enhanced pest control effect, and this unexpected effect is a true synergistic effect, not just the addition of activity. DETAILED DESCRIPTION

[0049] For the convenience of understanding the present invention, the present invention lists the following embodiments. It should be understood by those skilled in the art that the embodiments are only to help understand the present invention and should not be regarded as specific limitations of the present invention.

[0050] The present invention has found that the combination of the compound of formula I and the compound II can effectively prevent or control pests and their larvae and eggs. Surprisingly, the activity of the pesticidal composition of the present invention in controlling harmful organisms is much higher than the sum of the performance of the individual active compounds. This unexpected effect is a true synergistic effect, not just the addition of activity.

[0051] As used herein, the term "synergistic effect" means that the insecticidal effect of the active compound combination or composition of the present invention is greater than the sum of the effects of the individual active compounds, or in other words, the effect is superadditive.

[0052] The invention provides an insecticidal composition, which contains an active compound of formula I and a compound II, wherein the compound II is selected from one of the following compounds: cypermethrin, isoprocarb, cypermethrin, cyantraniliprole, buprofezin, pymetrozine, acetamiprid, thiacloprid, clothianidin, indoxacarb, avermectin, ivermectin, spirotetramat, sulfoxaflor, pyriproxyfen, dinotefuran, diafenthiuron, bifenthrin and ethomethrin.

[0053] The insecticide composition of the present invention contains the compound of formula I and mefenamic acid or isoprocarb.

[0054] The insecticide composition of the present invention contains the compound of formula I and avermectin or ivermectin.

[0055] The insecticide composition of the present invention contains the compound of formula I and cyantraniliprole.

[0056] The insecticide composition of the present invention contains the compound of formula I and sulfoxaflor.

[0057] The insecticide composition of the present invention contains the compound of formula I and spirotetramat.

[0058] The insecticide composition of the present invention contains the compound of formula I and an insecticide ring.

[0059] The insecticide composition of the present invention contains the compound of formula I and buprofezin.

[0060] The insecticide composition of the present invention contains the compound of formula I and acetamiprid, thiacloprid, clothianidin and dinotefuran.

[0061] The insecticide composition of the present invention contains the compound of formula I and pymetrozine.

[0062] The insecticide composition of the present invention contains the compound of formula I and pyriproxyfen.

[0063] The insecticide composition of the present invention contains the compound of formula I and diafenthiuron.

[0064] The insecticide composition of the present invention contains the compound of formula I and bifenthrin or ethomethrin.

[0065] The weight ratio of the compound of formula I to compound II is 10:1-1:150, preferably 1:5-1:150, preferably 1:10-1:150, preferably 1:10-1:100, further preferably 1:10-1:80, even more preferably 1:10-1:70, and even more preferably 1:10-1:50.

[0066] The weight ratio of the compound of formula I and compound II described in the present invention can also be, for example, 10:1, 5:1, 1:1, 1:5, 1:10, 1:15, 1:20, 1:25, 1:30, 1:35, 1:40, 1:45, 1:50, 1:55, 1:60, 1:65, 1:70, 1:75, 1:80, 1:85, 1:90, 1:95, 1:100, 1:110, 1:120, 1:130, 1:140, 1:150.

[0067] The preparation of compound II and its action against pests are known and can be found in The Pesticide Manual, 16th edition and other publications.

[0068] The total amount of active ingredients in the insecticide composition of the present invention can be selected according to specific factors to achieve the desired effect, such as the dosage form, the object to be applied, the application method, etc.

[0069] The present invention provides an insecticidal composition, which contains active compounds of formula I and compound II, wherein the weight of the compound of formula I and compound II together accounts for 1%-90% by weight of the composition, preferably 5%-80%, more preferably 5%-70%, further preferably 5%-60%, and more preferably 5%-50%.

[0070] A pesticidal composition comprising active ingredients of a compound of formula I and a compound II, wherein the total weight of the compound of formula I and the compound II may be, for example, 1%, 2%, 3%, 4%, 5%, 6%, 7%, 8%, 9%, 10%, 11%, 12%, 13%, 14%, 15%, 16%, 17%, 18%, 19%, 20%, 21%, 22%, 23%, 24%, 25%, 26%, 27%, 28%, 29%, 30%, 35%, 40%, 45%, 50%, 55%, 60%, 65%, 70%, 75%, 80%, 85%, or 90% of the weight of the pesticidal composition.

[0071] The insecticide composition of the present invention may optionally contain auxiliary ingredients such as agronomically acceptable surfactants and / or fillers. Preferably, the auxiliary ingredient is one or a mixture of a dispersant, a wetting agent, an antifreeze agent, a thickener, a defoaming agent, a disintegrant, a binder, and an auxiliary carrier.

[0072] According to the present invention, the term "filler" refers to a natural or synthetic organic or inorganic compound that can be combined or associated with an active compound to make it easier to apply to an object (e.g., a plant, a crop, or a grass). Therefore, the filler is preferably inert and should at least be agronomically acceptable. The filler can be solid or liquid.

[0073] The inactive filler that can be used in the present invention can be either solid or liquid.

[0074] Solid fillers include, for example, plant powders (such as soybean powder, starch, grain powder, wood powder, bark powder, sawdust, walnut shell powder, bran, cellulose powder, coconut shells, corn cobs and tobacco stem particles, residues after extracting plant essences, etc.), clays (such as kaolin, bentonite, acidic porcelain clay, etc.), talc, silicas (such as diatomaceous earth, silica sand, mica, hydrous silicic acid, calcium silicate), activated carbon, natural minerals (pumice, attapulgite and zeolite, etc.), and fired diatomaceous earth.

[0075] The liquid filler may be selected from the following materials, such as water, isopropyl alcohol, butanol, ethylene glycol, propylene glycol, ethyl acetate, methyl oleate, amides, dimethyl sulfoxide, mineral and vegetable oils, etc.

[0076] Surfactants can be used to emulsify, disperse, solubilize and / or wet the active ingredient compounds. For example, fatty alcohol polyoxyethylene ethers, polyoxyethylene alkyl aryl ethers, polyoxyethylene higher fatty acid esters, phosphate esters of polyoxyethylene alcohols or phenols, fatty acid esters of polyols, naphthalenesulfonic acid polymers, lignin sulfonates, high molecular comb-shaped branched copolymers, butylnaphthalenesulfonates, alkylarylsulfonates, sodium alkylsulfosuccinates, oils and fats, condensates of fatty alcohols and ethylene oxide, polyacrylates of alkyl taurates, protein hydrolysates, suitable oligosaccharides or polymers, for example based on vinyl monomers, acrylic acid, polyoxyethylene and / or polyoxypropylene alone or in combination with, for example, (poly)alcohols or (poly)amines.

[0077] In order to disperse, stabilize and adhere the active ingredient compounds, auxiliary agents such as xanthan gum, magnesium aluminum silicate, gelatin, starch, cellulose methyl ether, polyvinyl alcohol, polyvinyl acetate and natural phospholipids (such as cephalin and lecithin) as well as synthetic phospholipids, bentonite, sodium lignin sulfonate, etc. can be used.

[0078] Among them, ethylene glycol, propylene glycol, glycerol, and sorbitol can be selected as antifreeze agents. As deflocculants for suspended products, auxiliary agents such as naphthalenesulfonic acid polymers and polyphosphates can be used. As defoamers, silicone defoamers can be used. To improve the fluidity of solid products, auxiliary agents such as paraffin, stearate, and alkyl phosphate can be used.

[0079] Colorants that can be used include, for example, inorganic pigments such as iron oxide, titanium oxide and Prussian blue; and organic pigments / dyes such as alizarin dyes, azo dyes and metal phthalocyanine dyes; and trace elements such as iron salts, manganese salts, boron salts, copper salts, cobalt salts, molybdenum salts and zinc salts.

[0080] Optionally, other additional components may also be included, such as protective colloids, adhesives, thickeners, thixotropic agents, penetrants, stabilizers, masking agents.

[0081] The insecticidal composition of the present invention can be used by itself, or can be used in the form of its preparation or the use form prepared therefrom according to its respective physical and / or chemical properties, such as aerosol, microcapsule suspension, cold mist, hot mist, microcapsule granules, fine granules, suspension for seed treatment, ready-to-use solution, powder, emulsifiable concentrate, oil-in-water emulsion, water-in-oil emulsion, large granules, microgranules, oil-dispersible powder, oil suspension, oil, foam, paste, seed coating, suspension, suspension emulsion, aqueous solvent, suspension, wettable powder, soluble powder, dust and granules, water-soluble granules or tablets, water-soluble powder for seed treatment, wettable powder, natural products and synthetic substances impregnated with active ingredients, microcapsules in polymeric materials and seed coating materials, and ultra-low volume cold mist and hot mist preparations.

[0082] The preferred dosage forms of the insecticide composition of the present invention are emulsifiable concentrates, aqueous suspensions, oil suspensions, seed treatment dry powders, seed treatment suspensions, water dispersible granules, wettable powders, suspoemulsions, aerosols, coated granules, extruded granules, aqueous emulsions, microcapsule suspensions, microcapsule suspension-suspension concentrates, dry suspensions, ultra-low volume liquids, electrostatic oils, gels, granules, and microparticles.

[0083] The pesticidal composition of the present invention can also be used in combination with other active ingredients, such as fungicides, bactericides, attractants, insecticides, miticides, nematicides, growth regulators, herbicides, safeners, fertilizers or chemical semioms.

[0084] The preparations of the present invention can be prepared by mixing the active ingredients with conventional additives in a known manner, such as conventional extenders and solvents or diluents, emulsifiers, dispersants, and / or binders or fixatives, wetting agents, waterproofing agents, and, if necessary, driers and colorants, stabilizers, pigments, defoamers, preservatives, thickeners, water and other processing aids.

[0085] The insecticidal compositions of the present invention include not only those that can be immediately applied to the object to be treated by means of suitable equipment such as spraying or dusting equipment, but also concentrated commercial compositions that need to be diluted before application to the object.

[0086] The insecticidal composition of the present invention may be formulated into a preparation suitable for application in the form of a combination of its active ingredient compounds, or may be applied in the form of a combination of its commercial preparations at appropriate dosages.

[0087] The insecticidal composition of the present invention has good plant compatibility and favorable homeothermic animal toxicity, and is suitable for controlling harmful organisms encountered in agriculture, forestry, protection of stored products and materials, and health fields, especially Insecta, Arachnida, Nematoda. They are active against usually sensitive and resistant species, and are active against all or individual developmental stages, and also achieve a surprising "synergistic" effect in preventing or controlling harmful organisms.

[0088] The present invention also provides a use of the pesticidal composition of the present invention for preventing or controlling harmful organisms. The term "harmful organism" used herein means any organism that can cause damage to the normal state of a plant, including harmful insects, arachnids, and nematodes.

[0089] The class Insecta includes the orders Lepidoptera, Coleoptera, Diptera, Hemiptera, Homoptera, Hymenoptera, Thysanoptera, Isopoda, Diplopoda, Chilopoda, Synplasia, Thysanura, Collembola, Collembola, Orthoptera, Blattodea, Dermoptera, Isoptera, and Phycoptera.

[0090] Lepidoptera pests: Pyralidae, such as Chilo suppressalis (walker), Tryporyza incertulas (walker), Cnaphalocrocism medinalis Guenee, Hellullaundalis, Conogethes punctiferlis; Pieridae, such as Pieris rapae rapae), papilioxuthus, pierisrapaecrucivora, parnaraguttata; Arctiidae such as the white moth (hyphantriacunea); Noctuidae such as the cabbage looper (trichoplusiani), cabbage looper (mamestrabrassicae), beet armyworm (spodopteraexigua), cutworm (spodopteralitura), cotton bollworm (helicoverpaarmigera), oriental armyworm (Pseudaletia separate), cutworm (Agrotisipsilon); Tortricidae such as the tea leaf roller (adoxophyesoranafasciata), apricot leaf roller (archipsfuscocureanus), tea leaf roller (homonamagnanima); Plutellidae Such as the diamondback moth (Plutella xylotella); Gelechiidae such as the pink bollworm (Pectinophoragossypiella) and the pink bollworm (Pink bollworm);

[0091] Coleoptera pests, such as: rice weevil (sitophilus oryzaeline), citrus leaf miner (PodagricomelanigricollisChe), corn weevil (S.zeamails), grain weevil (S.granarius), cabbage leaf beetle (Cabbageleafbeetle), small monkey leaf beetle (Daikon leaf beele), flea beetle (fleabeetle), grape flea beetle (Alticachalybea), curved flea beetle (phyllotretastriolata), cucumber flea beetle (Epitrixcucumeris), tobacco flea beetle (Ehirtipennis), eggplant flea beetle (E.fuscula), yellow melon (Aulacophoraindica (Gemlin), mustard leaf beetle (Phaedoncochleariae), rice water weevil (Lissorhoptrus oryzophilus), Callosobruchuyschienensis, yellow mealworm (Tenebrio molitor), corn rootworm (Diabrotica virgiferavirgifera), cucumber beetle (Diabrotica undecimpunctata howardi), copper beetle (Anomalacuprea), red copper beetle (Anomala rufocuprea), yellow flea beetle (Phyllotreta striolata), yellow melon beetle (Aulacophora femoralis), potato beetle (Leptinotarsa ​​decemlineata), rice mudworm (Oulema oryzae), bostrychidae and Cerambycidae;

[0092] Diptera pests, for example: rice leafminer (agromyza oryzae), barley leafminer (hydrelliagriseola), African daisy leafminer (liriomyza trifolii), pea leafminer (chromatomyia horticola), tomato leafminer (liriomyza bryoniae), gray ground fly (delia platura), onion fly (delia antiqua), Mediterranean fruit fly (ceratitis capiata wiedgman), apple fruit fly (Rhagoletis pomonella), cherry fruit fly (R. cingulata).

[0093] Pests of the order Hemiptera, for example, of the families Aphididae, Adelgidae or Phylloxeridae, for example Myzus persicae, Aphis gossypii, Aphis fabae, Aphis maidis (corn leaf aphid), Acyrthosiphon pisum, Aulacorthum solani, Aphis craccivora, Macrosiphum euphorbiae, Macrosiphum avenae, Metopolophium dirhodum, Rhopalosiphum padi, Schizaphis graminum, Brevicoryne brassicae, Lipaphis erysimi, Aphis serrata, citricola, Rosy apple aphid, Eriosoma lanigerum, Toxoptera aurantii and Toxoptera citricidus, Cicadellidae, such as Nephotettix cincticeps; Delphacidae, such as Laodelphax striatellus, Nilaparvata lugens and Sogatella furcifera; Pentatomidae, such as Eysarcoris ventralis and Nezara viridula; Aleyrodidae, such as Bemisia tabaci tabaci and greenhouse whitefly (Trialeurodes vaporariorum); Diaspididae, Margarodidae, Ortheziidae, Aclerdiae, Dactylopiidae, Kerridae, Pseudocoddidae; Coccidae; Eriococcidae; Asterolecaniidae, Lecanodiaspididae;or Cerococcidae, such as Pseudococcus comstocki and Planococcus citri Risso; Psyllidae, such as Psylla psylla (psyllapyrisuga), Diaphorina tabaci;

[0094] Pests of the order Coleoptera, for example, Lissorhoptrus oryzophilus, Callosobruchuys chienensis, Tenebrio molitor, Diabroticavirgifera virgifera, Diabrotica undecimpunctata howardi, Anomala cuprea, Anomala rufocuprea, Phyllotretastriolata, Aulacophora femoralis, Leptinotarsadecemlineata, Oulema oryzae, bostrychidae and Cerambycidae;

[0095] Orthopteran pests for example, Acrididae; megacopta punctatissimum, eurydemarugosum, eysarcoris lewisi, eysarcoris parvus, nezara viridula, plautia stali, halymorphamista, cletus punctiger, leptocorisa chinensis, stephantis pyrioides, trigonotylus coelestialium.

[0096] Pests of the order Hymenoptera, such as the yellow-winged sawfly (Athalia rosaeruficornis), the rose sawfly (Argepagana), the black mountain ant (Formica japonica), the chestnut gall wasp (Dryocsmuskuriphilus), etc.

[0097] Thysanopteran pests, such as Thrips palmi and Frankliniella occidentalis;

[0098] From the order of the Isopoda, for example, Oniscus assellus, Armadilliudium vulgare, Porcellio scaber.

[0099] Pests of the order Diplopoda, for example, Blaniulusguttulatus.

[0100] Pests of the order Chilopoda, for example, GeophiluscarpophagusScutigera spp.

[0101] Pests of the order Synthetic, for example, white pine borer (Scutigerella immaculata).

[0102] Pests of the order Thysanura, for example, Silverfish ( Lepismasaccharina ).

[0103] Pests of the order Collembola, for example, Onychiurus sarmatus.

[0104] Pests of the order Orthoptera, for example, house cricket (Acheta domesticus), Gryllotalpa spp., Asian migratory locust (Locustamigratoriamigratorioides), black locust species (Melanopluss pp.), desert locust (Schistocerca gregaria).

[0105] Pests of the order Blattaria, for example, Blatta orientalis, Periplaneta americana, Leucophae amaderae, Blattella germanica.

[0106] Pests of the order Dermoptera, for example, Forficula auricularia.

[0107] Pests of the order Isoptera, for example, Reticulitermes spp.

[0108] From the order of the Anoplura, Phthiraptera, for example, Damalinia spp., Haematopinus spp., Linognathus spp., Pediculus spp., Trichodectes spp.

[0109] Pests of the order Acarina, class Arachnida. Examples include Panonychus citri, Tetranychus cinnabarinus, Panonychus ulmi, Tetranychus surticae, Tetranychus viennensis, Oligonychus ununguis, Eotetranychus kankitus, Brevipalpus phoenicis, and Bryobi apraetiosa), wheat leaf curler (Aceriatulipae), grape gall mite (Colacarusvitis), tea leaf gall mite (Calacaruscarinatus), tea yellow mite (Polyphagotarsonemuslatus), long-haired root mite (Rhizoglyphusrostochiensis), rough-legged flour mite (Acarussiro), citrus gall mite (Aceriasheldoni), Schlechtendali needle gall mite (Aculusschlechtendali), Tetranychus spp., Panonychus spp., Phyllocoptrutaspp., Brevipalpus spp., etc.

[0110] Representative organisms of the class Nematoda are selected from the genera Meloidogyne spp., Heterodera spp., Globodera spp., Radopholus spp., Pratylenchus spp., Longidorus spp., etc. Preferred nematodes are Heterodera, golbodera spp., meloidogyne incognita, etc.

[0111] In particular, the insecticidal composition of the present invention is particularly effective in preventing or controlling "sucking" pests; these pests specifically include the following pests:

[0112] Aleurodes: such as cabbage whitefly (Aleurodes brassicae), tobacco whitefly (Bemisia tabaci), greenhouse whitefly (Trialeurodes vaporariorum);

[0113] Aphididae: such as Myzus persicae, Aphis gossypii, Brevicorynebrassicae, Cryptomyzus ribis, Aphis fabae, Aphispomi, Eriosoma lanigerum, Hyalopterusarundinis, Phylloxera vastatrix, Macrosiphum avenae, Macrosiphum avenae, Metopolophium dirhodum, Rhopalosiphum padi, Schizaphis graminum;

[0114] Cicadellidae, such as the black-tailed leafhopper (Nephotettix cincticeps);

[0115] Psyllidae, such as pear psyllid (psyllapyrisuga) and citrus psyllid (diaphorinatabaci).

[0116] Superfamily Coccoidea: Diaspididae, Margarodidae, Ortheziidae, Aclerdiae, Dactylopiidae, Kerridae, Pseudocoddidae; Coccidae; Eriococcidae; Asterolecaniidae, Lecanodiaspididae; or Cerococcidae, for example Pseudococcus comstocki and Planococcus citri Risso;

[0117] In particular, the insecticidal composition of the present invention shows a surprising "synergistic" effect on preventing or controlling pests of the family Aphididae, Psyllidae, Cicadidae, Whitefly, Coccidae, and their larvae and eggs.

[0118] The insecticide composition of the present invention unexpectedly exhibits extremely high activity in preventing or controlling pests of aphids, psyllids, cicadellidae, whiteflies, coccidae and their larvae and eggs in treating plants, plant propagation materials and soil where plants grow.

[0119] The insecticidal composition of the present invention has excellent control effect on pests of aphids, psyllids, cicadellidae, whiteflies, coccidae and their larvae and eggs at a low dosage.

[0120] On the other hand, the present invention also provides a use of an insecticidal composition for preventing or controlling pests of the family Aphididae, Psyllidae, Cicadidae, Whitefly, Coccidae, and their larvae and eggs.

[0121] The invention provides an insecticide composition for preventing or controlling tobacco aphid, cotton aphid, peach aphid, tea green leafhopper, black tail leafhopper, whitefly, greenhouse whitefly, pear psyllid, citrus psyllid, scale insect pests and their larvae and eggs.

[0122] The pesticidal composition of the present invention can be applied to any and all developmental stages of pests, such as eggs, larvae, pupae and adults. Pests can be controlled by contacting the target pests, their food supply, habitat, breeding ground or their location with an insecticidally effective amount of the pesticidal composition of the present invention.

[0123] “Location” means plants, plant propagation material, soil, area, material or environment in which a pest is growing or may grow.

[0124] "Insecticidal effective amount" refers to the amount of the insecticidal composition of the present invention required to obtain an observable effect on growth, including a mortality, prevention or removal effect, a destruction effect or an effect of reducing the appearance and activity of animal pests. The insecticidal effective amount of the various insecticidal compositions used in the present invention can vary. The insecticidally effective amount of the composition will also vary depending on the prevailing conditions such as the desired insecticidal effect and duration, weather, target species, location, mode of application, etc.

[0125] According to the present invention, all plants and parts of plants can be processed. "Plant" should be understood as representing all plants and plant populations such as desired and undesirable wild plants or crops (comprising naturally grown crops) at this. Crop can be the plant obtained by conventional breeding and optimization method, or the plant obtained by biotechnology and genetic engineering method or the combination of these methods, including transgenic plants and including plant cultivars that can or cannot be protected by plant breeder's certificate. Plant parts should be understood as representing all above-ground and underground parts and plant organs such as seedlings, leaves, flowers and roots, and the example that can be mentioned is leaf, needle, stem, dry, flower, fruit body, fruit and seed and root, tuber and rhizome. The part of plant also includes plant and asexual propagation and sexual propagation material after harvest, for example seedling, tuber, rhizome, cutting and seed.

[0126] As mentioned above, all plants and their parts can be treated according to the invention. In a preferred embodiment, wild plant species and plant cultivars, or those obtained by conventional biological breeding methods such as hybridization or protoplast fusion, and their parts are treated. In a more preferred embodiment, transgenic plants and plant cultivars and their parts obtained by genetic engineering (if necessary in combination with conventional methods (Genetically Modified Organisms)) are treated.

[0127] Particular preference is given to treating according to the invention plants of the plant cultivars which are in any case commercially available or in use.

[0128] The insecticidal composition of the present invention shows particularly advantageous effects when used on, for example, the following plants:

[0129] Crops: corn, rice, wheat, barley, rye, oats, sorghum, cotton, soybeans, peanuts, buckwheat, sugar beets, pakchoi, cabbage, rapeseed, sunflower, sugarcane, tobacco, etc.

[0130] Vegetables: Solanaceae vegetables (eggplant, tomato, green pepper, hot pepper, potato, etc.), Cucurbitaceae vegetables (cucumber, pumpkin, summer squash, watermelon, melon, etc.), Brassica vegetables (rapeseed, radish, turnip, horseradish, kohlrabi, cabbage, mustard, broccoli, cauliflower, etc.), Asteraceae vegetables (burdock, wormwood, artichoke, lettuce, etc.), Liliaceae vegetables (scallion, onion, garlic, asparagus, etc.), Apiaceae vegetables (carrot, parsley, celery, parsnip, etc.), Chenopodiaceae vegetables (spinach, chard, etc.), Labiate vegetables (perilla, mint, basil, etc.), strawberry, sweet potato, yam, taro, etc.

[0131] Fruit trees: pome fruits (apple, pear, Japanese pear, papaya), stone fruits (peach, plum, nectarine, plum, yellow peach, apricot, prune, etc.), citrus fruits (Wenzhou mandarin orange, tangerine, lemon, lime, grapefruit, etc.), nuts (chestnut, walnut, hazelnut, almond, cashew, etc.), berries (cranberry, blackberry), grapes, persimmon, olive, loquat, banana, coffee, date, coconut, oil coconut.

[0132] Trees other than fruit trees: tea, mulberry, flowering trees (azalea, camellia, hydrangea, oil-tea tree, Japanese fennel, cherry, crape myrtle, golden osmanthus, etc.), street trees (birch, ginkgo, lilac, maple, oak, poplar, bauhinia, liquidambar, sycamore, beech, Japanese cedar, fir, Japanese hemlock, juniper, pine, spruce, yew, elm, etc.), coral tree, podocarpus, cedar, Japanese cypress, croton, photinia, etc.

[0133] Lawn: Zoysia grass (Zoysia japonica, Zoysia ditchleaf, etc.), Bermuda grass (Bermuda grass, etc.), Bentgrass (Giant bentgrass, creeping bentgrass, dryland bentgrass, etc.), Bluegrass (Bluegrass, Birdgrass, etc.), Fescue (Tall fescue, red fescue, creeping red fescue, etc.), Ryegrass (Barramundi, Lolium, etc.), Wild grass, Timothy, etc.

[0134] Others: flowers (rose, dianthus, chrysanthemum, platycodon, dianthus, gerbera, marigold, sage, petunia, verbena, tulip, gentian, lily, pansy, cyclamen, orchid, convalescentia, lavender, violet, kale, primrose, euphorbia, daisy, orchid, begonia, etc.), biofuel plants (jatropha, safflower, camelina, switchgrass, miscanthus, reed, arundo donax, kenaf, cassava, willow, etc.), ornamental plants, etc.

[0135] The insecticide composition of the present invention has good plant compatibility and is suitable for controlling pests, especially insects, mites, nematodes, as well as fungi, rodents, microorganisms, etc., especially pests of the aphid family, psyllid family, cicadidae family, whitefly family, and scale family. It is preferably suitable for foliar treatment, soil treatment and seed treatment.

[0136] On the other hand, the present invention also provides a method for preventing or controlling pests and their larvae and eggs, wherein the pesticidal composition of the present invention is applied to target useful plants, target pests or their environment, or propagation materials of target useful plants. The method can be performed before or after the plants, plant propagation materials or environment are infested by pests.

[0137] The term "plant propagation material" should be construed as referring to all plant parts with reproductive capacity, for example seed, which can be used to breed the latter, and vegetable materials such as cuttings or tubers (for example potato). Therefore, plant parts used herein include plant propagation materials. For example, seed, root, fruit, tuber, bulb, rhizome and plant parts can be mentioned. Sprouting plants and effective plants that are suppressed after germination or emergence from soil. Young plants can be protected by all or local treatments before transplanting by dipping.

[0138] The plant propagation material is seedlings, rhizomes, nursery seedlings, cuttings or seeds. Seeds are preferred.

[0139] The insecticide composition of the present invention can be applied to seeds, plants or fruits of plants or soil where plants grow or soil suitable for plant growth.

[0140] A method for protecting seeds comprises contacting the seeds with an insecticidal effective amount of the insecticidal composition of the present invention before sowing and / or after germination.

[0141] The plants include: stems and leaves of plants, flowers of plants, fruits of plants, etc.

[0142] The seeds are selected from soybean, wheat, barley, rye, sorghum, peanut, sunflower, sugarcane, tobacco, rice, rapeseed, pakchoi, cabbage, beet, tomato, cowpea, carrot, cotton and corn seeds.

[0143] Thus, the present invention provides a method for protecting seeds, seedling roots and shoots from soil and foliar insect infestation, comprising contacting the seeds with an effective amount of the insecticidal composition of the present invention before sowing and / or after germination.

[0144] The present invention also provides a method for controlling or preventing pests and their larvae and eggs in plant propagation materials and in plant organs, plant parts and / or plants grown thereafter, comprising applying the pesticidal composition of the present invention to the plant propagation materials or their environment. The plant propagation materials are preferably seeds.

[0145] Most of the damage to crop plants caused by pests occurs as early as when the seed is infested, during storage and after the seed is sown in the soil and during or after germination of the plant. This phase is particularly critical, since the roots and shoots of the growing plant are particularly sensitive and even minor damage can lead to the death of the entire plant. Therefore, it is of particular interest to protect the seed and the germinating plant by using suitable compositions.

[0146] The present invention also particularly relates to a method for protecting seeds and germinating plants from pests and their larvae and eggs by treating the seeds with the pesticidal composition of the present invention. The method of the present invention for protecting seeds and germinating plants from Psyllidae, Chrysomelidae, Cicadidae, Aleyrodidae, Coccidae pests and their larvae and eggs comprises a method of treating the seeds with a compound of formula I and a compound II at the same time. It also includes a method of treating the seeds with a compound of formula I and a compound II at different times.

[0147] A method for preventing or controlling pests and their larvae and eggs, comprising treating seeds for expected plant growth with a synergistically effective amount of the pesticidal composition of the present invention before sowing and / or after germination.

[0148] The invention also relates to the use of the insecticidal composition according to the invention for treating seeds to protect the seeds and the plants grown therefrom from attack by pests and their larvae and eggs.

[0149] Furthermore, the present invention also relates to seeds treated with the pesticidal composition of the present invention to thereby obtain protection from pests and their larvae and eggs.

[0150] The present invention also relates to seeds treated with the compound of formula I and compound II at the same time. The present invention also relates to seeds treated with the compound of formula I and compound II at different times. For seeds treated with the compound of formula I and compound II at different times, the individual active compounds of the pesticidal composition of the present invention may be present in different layers on the seeds. Among them, the layers containing the compound of formula I and compound II may optionally be separated by an intermediate layer. The present invention also relates to seeds in which the compound of formula I and compound II are applied as coating components or as one or more additional layers outside the coating.

[0151] Insecticidal composition of the present invention can be applied to the seed of any physiological state.Preferably seed is in a sufficiently durable state, thereby is not damaged during the treatment process.Generally, seed can be harvested from the field, removed from the plant, separated from the seed of any cob, stem, husk and surrounding pulp or other non-seed plant material.Seed can also preferably be biologically stable, to reach the degree that treatment does not cause biological damage to seed.Can be applied to seed at any time between seed harvesting and seed sowing or during the sowing process.Seed can also be germinated before or after treatment.

[0152] The seeds treated with the pesticidal composition of the present invention can be stored, managed, sown and cultivated.

[0153] Seed treatment can be achieved by applying thereto a compound of formula I and isoprocarb or mefenamic acid in any desired order or simultaneously.

[0154] Seed treatment occurs on unsown seeds, the term "unsown seeds" being intended to include seeds at any stage between seed harvest and seed sowing in the ground for plant germination and growth purposes. Preferably, treatment occurs before seed sowing, so that the sown seeds have been pretreated with the combination. In particular, seed coating or seed pelleting is preferred in the treatment of the inventive combination. After treatment, the ingredients in each combination adhere to the seeds and can therefore be used for pest control.

[0155] Seed treatment methods include all methods known to the person skilled in the art that are suitable for treating seeds, such as seed dressing, seed coating, seed soaking, seed coating, seed multilayer coating, seed shelling, seed soaking, seed dusting and seed pelleting.

[0156] The composition of the present invention can be applied to seeds, plants or fruits of plants or soil where plants grow or soil suitable for plant growth.

[0157] The present invention also provides a method for preventing or controlling pests and their larvae and eggs, comprising applying the pesticidal composition of the present invention to seeds, target useful plants or soil where plants grow or soil suitable for plant growth.

[0158] On the other hand, the present invention also provides a method for preventing or controlling pests and their larvae and eggs, wherein the insecticidal composition of the present invention is applied to the soil before, after or before or after seed germination and / or directly applied to the soil in contact with plant roots or soil suitable for plant growth.

[0159] The present invention also provides a method for protecting plants from pests and their larvae and eggs, comprising applying the pesticidal composition of the present invention to an environment, habitat or storage area where useful plants grow. The environment and habitat where plants grow refer to a support that enables crops to take root and grow, such as soil, water, etc. Specific raw materials can be sand, pumice, vermiculite, diatomaceous earth, agar, gelatinous substances, polymer substances, asbestos, sawdust, bark, etc. Soil is preferred.

[0160] The present invention also provides a method for protecting plants from attack by Psyllidae, Chrysomelidae, Cicadidae, Aleyrodidae, Coccidae and their larvae and eggs, comprising applying the active components of formula I and compound II in combination, separately or sequentially. In the case of separate application, the order generally has no effect on the results of the control measures.

[0161] A method for preventing or controlling pests and their larvae and eggs, comprising applying a compound of formula I and a compound II separately, sequentially or simultaneously.

[0162] The invention also provides a method for protecting useful plants from attack by pests and their larvae and eggs, which comprises applying a combination comprising a compound of formula I and a compound II to the target useful plants or their environment, to the target pests or their environment, to the propagation material of the target useful plants in any desired order or simultaneously.

[0163] The insecticidal compositions according to the invention include both ready-to-use compositions which can be applied to plants or plant propagation materials using suitable devices and commercially available concentrates which have to be diluted with water before application.

[0164] The insecticidal composition of the present invention can be applied undiluted or diluted with water.

[0165] The present invention provides a method for preventing or controlling pests and their larvae and eggs, wherein the pesticidal composition of the present invention is applied to target useful plants or their environment, or propagation materials of target useful plants, and other pesticides can be applied before applying the compound of formula I and compound II, simultaneously with the compound of formula I and compound II, or independently of each other after applying the compound of formula I and compound II. In the case where the compound of formula I and compound II are applied separately, each other pesticide can be applied before applying the compound of formula I and compound II, simultaneously with the compound of formula I and compound II, between the application of the compound of formula I and compound II, or independently of each other after applying the compound of formula I and compound II.

[0166] It is common and advantageous to apply the pesticidal composition of the present invention at the following dosages:

[0167] For foliar treatment: 0.1-10000 g / ha, preferably 10-1000 g / ha, more preferably 10-300 g / ha, even more preferably 10-500 g / ha;

[0168] For seed treatment: 1-1000 g / 100 kg seeds, preferably 100-1000 g / 100 kg seeds;

[0169] For soil treatment: 1-10000 g / ha, preferably 10-1000 g / ha.

[0170] The above dosages are only general exemplary dosages. During actual application, those skilled in the art will adjust the application rate according to actual conditions and needs, especially according to the properties of the plants or crops to be treated and the pest situation.

[0171] Methods for treating target pests, target useful plants, or seeds, soil with the pesticidal composition of the present invention include, for example, spreading treatment, soil treatment, surface treatment and fumigation treatment. Spreading treatment includes, for example, spreading, spraying, atomizing, and granule application. Soil treatment includes, for example, soil irrigation and soil mixing. Surface treatment includes, for example, coating and covering. Fumigation treatment includes, for example, covering the soil with a polyethylene film after injection into the soil.

[0172] Applicators usually use the insecticidal composition of the present invention in a small backpack sprayer, spray tank, spray plane or irrigation system. The insecticidal composition of the present invention is usually formulated with water, buffer and / or other adjuvants to the desired application concentration to obtain a ready-to-use spray solution.

[0173] Compared with the prior art, the present invention has at least the following beneficial effects:

[0174] (1) The insecticidal composition of the present invention can show synergistic activity compared to the activity of a single compound;

[0175] (2) The plants and plant propagation materials treated with the insecticidal composition of the present invention reach a level showing significant improvement;

[0176] (3) The insecticidal composition of the present invention reduces the infestation and attack of any undesirable pests and their larvae and eggs; in particular, pests of the families Aphididae, Psyllidae, Cicadidae, Whitefly, Coccidae and their larvae and eggs;

[0177] (4) The present invention mixes the compound of formula I and compound II to solve the problem of sustained effect and rapid effect, thereby reducing the number of medications and reducing labor costs;

[0178] (5) The insecticide combination of the present invention delays the development of resistance: the two have completely different mechanisms and modes of action. When combined, they have the effects of contact killing, stomach poisoning, egg killing, and reducing egg laying rate and hatching rate, making it easier to kill pests, thereby delaying the development of resistance;

[0179] (6) The insecticidal composition of the present invention exhibits high efficiency, thereby reducing the dosage rate and the load on the environment;

[0180] (7) The insecticidal composition of the present invention can also be used for post-harvest protection.

[0181] Formulation Examples

[0182] Example 1 Wettable powder

[0183] Formula I compound 5%

[0184] Methiocarb 20%

[0185] Calcium lignin sulfonate 4%

[0186] Sodium lauryl sulfate 1%

[0187] Kaolin to 100%

[0188] The above components are mixed according to proportion, ground and pulverized to prepare wettable powder.

[0189] Example 2 Wettable powder

[0190] Formula I compound 5%

[0191] Cyantraniliprole 10%

[0192] Sodium Lauryl Sulfate 5%

[0193] Sodium lignin sulfonate 2%

[0194] Diatomaceous earth supplement to 100%

[0195] The above components are mixed according to proportion, ground and pulverized to prepare wettable powder.

[0196] Example 3 Dispersible oil suspension

[0197] Formula I compound 5%

[0198] Spirotetramat 20%

[0199] Fatty acid polyoxyethylene ether 5%

[0200] Modified sodium lignin sulfate 5%

[0201] Organic bentonite 1%

[0202] Soybean oil supplement to 100%

[0203] The active component, dispersant, wetting agent and oil are mixed evenly according to the proportion of the formula, and the oil suspension is obtained after grinding and / or high-speed shearing.

[0204] Example 4 Emulsifiable Concentrate

[0205] Formula I compound 0.5%

[0206] Isoprocarb 25%

[0207] Ethoxylated castor oil 3%

[0208] Calcium dodecylbenzenesulfonate 2%

[0209] N,N-Dimethylformamide 30%

[0210] SOLVESSO 200 Top up to 100%

[0211] The above ingredients are uniformly mixed and dissolved to obtain an emulsifiable concentrate.

[0212] Example 5 Emulsifiable Concentrate

[0213] Compound of formula I 1%

[0214] Buprofezin 15%

[0215] Ethoxylated castor oil 3%

[0216] Calcium dodecylbenzenesulfonate 2%

[0217] N,N-dimethylformamide 15%

[0218] SOLVESSO 200 Top up to 100%

[0219] The above ingredients are uniformly mixed and dissolved to obtain an emulsifiable concentrate.

[0220] Example 5 Water dispersible granules

[0221] Compound of formula I 1%

[0222] Isoprocarb 50%

[0223] Modified sodium lignin sulfonate 2%

[0224] Sodium Lauryl Sulfate 2%

[0225] Clay 1%

[0226] The above ingredients are uniformly mixed and ground, and then a certain amount of water is added to mix and extrude the materials, and then the water-dispersible granules are obtained after drying and sieving.

[0227] Example 6 Aqueous Suspension

[0228] Formula I compound 5%

[0229] Difenthion 30%

[0230] Sodium lignin sulfate 10%

[0231] 1% xanthan gum aqueous solution 1%

[0232] Bentonite 1.5%

[0233] Glycerol 5%

[0234] Water replenishment to 100%

[0235] The components are mixed evenly according to the proportions of the formula, and then ground and / or high-speed sheared to prepare a water suspension.

[0236] Example 7 Suspoemulsion

[0237] Compound of formula I 1%

[0238] Isoprocarb 25%

[0239] Dimethylformamide 25%

[0240] Ethoxylated castor oil 4%

[0241] Polystyrylphenylether sulfate 5%

[0242] Modified calcium lignin sulfonate 3%

[0243] 1% xanthan gum aqueous solution 1%

[0244] Bentonite 1%

[0245] Glycerol 3%

[0246] Water replenishment to 100%

[0247] Isoprocarb was dissolved in dimethylformamide and ethoxylated castor oil was added to obtain an emulsifiable concentrate of isoprocarb.

[0248] The compound of formula I, polystyrylphenyl ether sulfate, modified calcium lignin sulfonate and water are uniformly mixed in proportion and sand-milled to obtain a mixture; then, 1% xanthan gum aqueous solution, glycerol and bentonite are added to the sand-milled mixture to prepare a suspension containing the compound of formula I.

[0249] The oil phase containing isoprocarb is added to the suspension containing the compound of formula I to obtain a suspoemulsion.

[0250] Example 8 Suspoemulsion

[0251] Formula I compound 5%

[0252] Avermectin 1%

[0253] SOLVESSO 200 20%

[0254] Ethoxylated castor oil 3%

[0255] Sodium lignin sulfate 6%

[0256] 1% xanthan gum aqueous solution 1%

[0257] Bentonite 1%

[0258] Glycerol 3%

[0259] Water replenishment to 100%

[0260] Abamectin was dissolved in SOLVESSO200 and ethoxylated castor oil was added to obtain an emulsifiable concentrate of avermectin.

[0261] The compound of formula I, sodium lignin sulfate and water are mixed uniformly according to a certain proportion and sand-milled to obtain a mixture; then, 1% xanthan gum aqueous solution, glycerol and bentonite are added to the sand-milled mixture to prepare a suspension containing the compound of formula I.

[0262] The oil phase containing avermectin is added to the suspension containing the compound of formula I to obtain a suspoemulsion.

[0263] The proportions in the above embodiments are percentages by weight.

[0264] Biological test cases

[0265] The expected effect of a specific combination of two active ingredients can be calculated using the so-called "Colby formula" (see SR Colby, "Calculating Synergistic and Antagonistic Responses of Herbicide Combinations", Weeds 1967, 15, 20-22):

[0266]

[0267] X is the control effect when the active ingredient compound of formula I is used at a dosage of mg / ha or a concentration of m ppm, expressed as a percentage of the untreated control,

[0268] Y is the control effect when the active ingredient compound II is used at an amount of ng / ha or a concentration of n ppm, expressed as a percentage of the untreated control,

[0269] E is the control effect when the active components of the compound of formula I and compound II are used in an amount of m and ng / ha or a concentration of m and n ppm, expressed as a percentage of the untreated control,

[0270] If the actual control effect exceeds the calculated value, the lethal effect of the combination is superadditive, that is, there is a synergistic effect.

[0271] Test Example 1: Cabbage aphid test

[0272] Preparation of drug solution: The original drug (commercially available) of the compound of formula I (synthesized by the method described in WO2006 / 129714) and the compound II (commercially available) in Table 1 were dissolved in acetone to prepare a single dose mother solution, and then diluted with an aqueous solution containing 0.1% Tween-80 to the required concentration.

[0273] The peach aphid (Myzus persicae Sulzer) was used as the test pest. It was collected from the cabbage vegetable field in Kunshan, Jiangsu Province. After one generation of reproduction on insect-free cabbage planted indoors under insect-proof nets, 30 adult peach aphids with similar body color and uniform size were selected as a group for indoor experiments.

[0274] Aphids and cabbage leaves were immersed in the prepared solution for 10 seconds, taken out, and the excess solution was absorbed with absorbent paper, and placed in a plastic beaker with a diameter of 6 cm and a height of 10 cm. o C, and kept in a constant temperature incubator with a relative humidity of 60%-80%. The control treatment is a blank control without the drug. The test results are checked 72 hours after the drug treatment. If the control mortality rate is greater than 20%, the test is repeated.

[0275] Calculation method:

[0276] Mortality rate (%) = (number of live worms before medication - number of live worms after medication) / number of live worms before medication × 100

[0277] Control effect % = ((mortality rate of treatment group - mortality rate of control group) / (100 - mortality rate of control group)) × 100

[0278] Table 1 Test of the combination of compound I and compound II against peach aphid

[0279]

[0280] Test Example 2: Tomato whitefly test

[0281] Preparation of drug solution: The compound of formula I (synthesized by the method described in WO2006 / 129714) and the compound II in Table 2 (commercially available) were dissolved in acetone to prepare a single-dose mother solution, which was then diluted with an aqueous solution containing 0.1% Tween-80 to the required concentration.

[0282] The whiteflies (Bemisia tabaci) for testing were provided by the Dongfangcun Farm of Jiangsu Longdeng Chemical Co., Ltd. and had no obvious resistance to pesticides. Before the test, whiteflies were inoculated on insect-free tomato seedlings (variety: Cuihong) planted in a greenhouse under an insect-proof net. When the eggs were hatched and developed into 2-3 instar nymphs of the F1 generation, tomato leaves were cut and examined under a microscope to remove eggs and other non-test insect stages. 30 nymphs were tested on each leaf for spare use.

[0283] The whiteflies and tomato leaves were immersed in the prepared solution for 5 seconds, taken out, and the excess solution was absorbed with absorbent paper, and placed in a plastic beaker with a diameter of 6 cm and a height of 10 cm. oC, raised in a constant temperature incubator with a relative humidity of 60%-80%. The control treatment was a blank control without the drug. 72 hours after treatment, the death of the test insects was checked under a microscope. The criterion for judging death was that the insect body was shriveled and the color turned yellow.

[0284] If the control mortality rate is greater than 20%, the experiment should be repeated.

[0285] Calculation method:

[0286] Mortality rate (%) = (number of live worms before medication - number of live worms after medication) / number of live worms before medication × 100

[0287] Control effect % = ((mortality rate of treatment group - mortality rate of control group) / (100 - mortality rate of control group)) × 100

[0288] Table 2 Test of the combination of compound I and compound II against tomato whitefly

[0289]

[0290] Test Example 3 Test of the combination of compound I and compound II against tea green leafhopper

[0291] Preparation of drug solution: The compound of formula I (synthesized by the method described in WO2006 / 129714) and the compound II in Table 3 (commercially available) were dissolved in acetone to prepare a single-dose mother solution, which was then diluted with an aqueous solution containing 0.1% Tween-80 to the required concentration.

[0292] There is no indoor breeding strain of tea leafhoppers. In this experiment, young leaves of tea trees with serious damage caused by leafhoppers were collected from the nursery base of Zhejiang tea plantation and brought back to the laboratory. After identification, it was found to be a composite population, with tea leafhopper (Empoascaflavescens Fabr) as the relatively dominant species. In this experiment, tea leafhoppers were used as the test object. Tea leafhoppers were selected and raised in insect cages on potted tea trees, and the third-instar nymphs of the F1 generation were used for the test. 20 healthy and lively tea leafhoppers of basically the same size were selected for each group of experiments.

[0293] Immerse the tea leaves with the third-instar nymphs of the test tea green leafhopper in the liquid medicine, take them out after 10 seconds, use the filtrate to absorb the obvious excess liquid medicine on the test insects, and then transfer them to fresh and non-toxic tea leaves. Use wet cotton balls to keep the petioles moist, put them in a culture glass jar, cover them tightly, and wrap them with gauze to keep air circulation. After the test, transfer them to 25±2 oC, and reared in a constant temperature incubator with a relative humidity of 60%-80%. The control treatment was a blank control without the drug. 24 hours after the treatment, the death of the test insects was investigated. The criterion for judging the death of tea green leafhopper nymphs was that the insect body was obviously shrunk and there was no obvious crawling when touched with an insect pin. The total number of insects and the number of dead insects were recorded. The mortality rate and control effect were calculated. If the control mortality rate was greater than 20%, the test was repeated.

[0294] Calculation method:

[0295] Mortality rate (%) = (number of live worms before medication - number of live worms after medication) / number of live worms before medication × 100

[0296] Control effect % = ((mortality rate of treatment group - mortality rate of control group) / (100 - mortality rate of control group)) × 100

[0297] Table 3 Test of the combination of compound I and compound II against tea green leafhopper

[0298]

[0299] Test Example 4: Citrus psyllid test

[0300] Preparation of drug solution: The original drug of the compound of formula I (synthesized by the method described in WO2006 / 129714) and the compound II in Table 4 (commercially available) was dissolved in acetone to prepare a single dose mother solution, which was then diluted with an aqueous solution containing 0.1% Tween-80 to the required concentration.

[0301] Citrus psyllid (Diaphorina citri kuwayama) was used as the test pest. Since there is no indoor breeding strain, branches with a large number of citrus psyllids were collected from a tangerine tree planted in a citrus orchard in Guilin, Guangxi. The remaining insects were removed with a soft brush in the laboratory, leaving only the adults for testing. The citrus trees in the test insect source area had not been treated with any pesticides or fertilizers for at least one year.

[0302] Fresh citrus leaves with insects collected from the insect source were immersed in the test solution, taken out after 5 seconds, dried and placed in a culture jar, the petiole was moisturized with wet cotton, the bottom of the culture jar was covered with moisturizing filter paper, and the bottle cap had ventilation holes. 15 test insects were selected for each test.

[0303] After the test, transfer to 25±2 o C, and reared in a constant temperature incubator with a relative humidity of 60%-80%. The control treatment was a blank control without the drug. 24 hours after the treatment, the death of the test insects was investigated. The criterion for judging the death of citrus psyllid adults was that the insect body was obviously shrunk and there was no obvious crawling when touched with an insect pin. The total number of insects and the number of dead insects were recorded. The mortality rate and control effect were calculated. If the control mortality rate was greater than 20%, the test was repeated.

[0304] Calculation method:

[0305] Mortality rate (%) = (number of live worms before medication - number of live worms after medication) / number of live worms before medication × 100

[0306] Control effect % = ((mortality rate of treatment group - mortality rate of control group) / (100 - mortality rate of control group)) × 100

[0307] Table 4 Control effect of the combination of compound I and compound II on citrus psyllid

[0308]

[0309] Test Example 5 Scale insect test

[0310] Preparation of drug solution: The compound of formula I (synthesized by the method described in WO2006 / 129714) and the compound II in Table 5 (commercially available) were dissolved in acetone to prepare a single-dose mother solution, which was then diluted with an aqueous solution containing 0.1% Tween-80 to the required concentration.

[0311] The scale insect (Pseudococcus comstocki) was used as the test pest. o C, 14h). Select nymphs raised in the same room for the test. 100 test insects were selected for each group of tests.

[0312] The dipping method was used. Cut the leaves of Amaryllis infected with scale insects into leaf segments of about 1 cm in length and dip them in the liquid for 10 seconds. Place them on moist cotton and culture them. After the test, transfer them to 25±2 o C, and reared in a constant temperature incubator with a relative humidity of 60%-80%. The control treatment was a blank control without the drug. 72 hours after the treatment, the death of the test insects was investigated. Under the dissecting microscope, insects that did not respond to a light touch were considered dead. The mortality rate and control effect were calculated. If the control mortality rate was greater than 20%, the test was repeated.

[0313] Calculation method:

[0314] Mortality rate (%) = (number of live worms before medication - number of live worms after medication) / number of live worms before medication × 100

[0315] Control effect % = ((mortality rate of treatment group - mortality rate of control group) / (100 - mortality rate of control group)) × 100

[0316] Table 5 The control effect of the combination of the compound of formula I and compound II on scale insects

[0317]

[0318] The test results in Tables 1 to 5 show that the combination of the compound of formula I and the compound II achieves a synergistic effect in controlling cabbage aphids, tomato whiteflies, tea green leafhoppers, citrus psyllids, and scale insects.

Claims

1. A use of an insecticide composition for preventing or controlling tea green leafhoppers, characterized in that: The insecticide composition contains active ingredients of formula I compound and compound II: Chemical formula I ； Compound II is indoxacarb, and the weight ratio of the compound of formula I to compound II is 2:

1.

2. The use according to claim 1, characterized in that It may also contain surfactants and / or fillers.

3. The use according to claim 1, characterized in that The weight of the compound of formula I and compound II together accounts for 1% to 90% by weight of the insecticide composition.

4. The use according to claim 1, characterized in that The weight of the compound of formula I and compound II together accounts for 5% to 80% by weight of the insecticide composition.

5. The use according to claim 1, characterized in that: The weight of the compound of formula I and compound II together accounts for 5% to 50% by weight of the insecticide composition.

6. The use according to claim 1, characterized in that: The insecticide composition has the following dosage forms: emulsifiable concentrate, water suspension, oil suspension, seed treatment dry powder, seed treatment suspension, wettable powder, suspoemulsion, aerosol, water emulsion, microcapsule suspension, microcapsule suspension-suspension, dry suspension, ultra-low volume liquid, electrostatic oil, gel, granule, microparticle.

7. The use according to claim 1, characterized in that The insecticidal composition according to claim 1 is applied to target useful plants, target pests or their environment, or propagation materials of target useful plants.

8. The use according to claim 1, characterized in that The insecticidal composition according to claim 1 is applied to seeds, target useful plants or soil where plants grow or soil suitable for plant growth.

9. The use according to claim 1, characterized in that The insecticide composition of claim 1 is applied to the soil before, after or before or after germination of seeds and / or directly applied to the soil in contact with plant roots or soil suitable for plant growth.

10. The use according to claim 1, characterized in that The seeds are contacted with an insecticidal effective amount of the insecticidal composition according to claim 1 before sowing and / or after germination.

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