An insecticidal composition

Abstract

The present invention relates to a pesticidal composition comprising the active ingredient compound I and a compound II selected from at least one of spinosad, spinetoram, chlorfenapyr, sulfoxaflor, sulfoxaflor, emamectin benzoate, ethiprole, acrinathrin, bifenthrin. The present invention also relates to the use of said pesticidal composition for the prevention or control of Plutellidae, Tortricidae, Noctuidae, Delphacidae, Whitefly, Tetranychidae, Thripidae, Aphis, Coccidae pests. Compound I.

Description

[0001] The present application is a divisional application of patent application No. 2020106269426, filed on July 2, 2020, entitled "A Pesticidal Composition". TECHNICAL FIELD

[0002] The present application relates to a pesticidal composition, which is particularly effective for controlling agricultural and forestry pests. BACKGROUND

[0003] The most typical problem in the control of agricultural and horticultural pests is the need to reduce the dosage rate of active ingredients to reduce or avoid adverse environmental or toxicological effects, while still providing effective pest control.

[0004] Another difficulty in pest control is that repeated and exclusive use of a single pesticidal active ingredient in many cases leads to rapid selection of pests that are naturally or adaptively resistant to the active ingredient. Due to the polyphasy and adaptability of pests, resistance to pests is formed in a relatively short period of time. Therefore, there is also a need for a pest control agent that acts on both pests and their larvae and eggs.

[0005] Solving at least one problem such as improving biological properties, providing synergistic properties, reducing dosage rates, expanding the activity spectrum, combining knockdown activity and long-lasting effects, resistance management to delay resistance is a long-term need for controlling agricultural or forestry pests.

[0006] Compound I is known from WO2006013896 and belongs to quinoline derivatives.

[0007]

[0008] Compound I SUMMARY

[0009] The present application aims to provide a pesticidal composition to solve the above problems, the pesticidal composition contains active ingredients Compound I and Compound II, and the combination of Compound I and Compound II can effectively prevent or control animal pests and their larvae and eggs; we found that the combination or separate application of Compound I and Compound II or the sequential application of Compound I and Compound II can obtain higher control effect on pests than the control rate that can be obtained by applying the single compound. The combination of Compound I and Compound II shows high efficiency, reduces the dosage rate, and reduces the environmental load.

[0010] The pesticidal composition of the present application is implemented by the following technical scheme:

[0011] A pesticidal composition containing active ingredients Compound I and Compound II,

[0012]

[0013] Compound I

[0014] Compound II is selected from one of the following compounds: spinosad, spinetoram, chlorfenapyr, sulfoxaflor, sulfoxaflor, emamectin benzoate, chlorfenapyr, ethofenprox, bifenthrin.

[0015] The weight ratio of the compound I and the compound II is usually in the range of 500:1-1:500, more preferably 200:1-1:200, preferably 100:1-1:100, more preferably 50:1-1:50, more preferably 25:1-1:25, a synergistic effect is obtained; the compound II is selected from one of the following compounds: spinosad, spinetoram, chlorfenapyr, sulfoxaflor, sulfoxaflor, emamectin benzoate, chlorfenapyr, ethofenprox, bifenthrin.

[0016] The compound I, the compound II, the mechanism of action and the mode of action described in the present application are completely different, and after combination, have the effects of contact killing, stomach poisoning, killing eggs, and reducing egg laying rate and hatching rate, so that the pests are more easily killed, thereby delaying the generation of resistance.

[0017] The present application provides an insecticidal composition containing active ingredients of compound I and compound II, the total weight of the compound I and the compound II accounting for 1%-90% of the insecticidal composition by weight, preferably 5%-80%, more preferably 5%-70%, more preferably 5%-60%, more preferably 5%-50%, more preferably 10%-50%, more preferably 10%-40%.

[0018] An insecticidal composition containing active ingredients of compound I and compound II, the total weight of the compound I and the compound II accounting for the insecticidal composition by weight may also 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%, 90%.

[0019] An insecticidal composition containing active ingredients of compound I and compound II, the insecticidal composition further comprising a surfactant and / or a filler.

[0020] The insecticidal composition of the present application can be applied without dilution or can be diluted with water.

[0021] The insecticidal composition of the present application can be applied without dilution or can be diluted with water.

[0022] The insecticidal composition of the present application unexpectedly exhibits a high preventive or controlling activity against pests and their larvae and eggs in the treatment of plants, plant propagation materials, soil where plants grow.

[0023] The insecticidal composition of the present application exhibits an excellent controlling effect against pests and their larvae and eggs at a low dosage.

[0024] In another aspect, the present application also provides a use of the insecticidal composition for preventing or controlling pests and their larvae and eggs.

[0025] In particular, the present application provides a use of the insecticidal composition for preventing or controlling pests of the order Lepidoptera, Hemiptera, Diptera, Thysanoptera, Acarina.

[0026] The present application provides a use of the insecticidal composition for preventing or controlling pests of the family Plutellidae, Tortricidae, Noctuidae, Delphacidae, Whitefly, Tetranychidae, Thripidae, Aleyrodidae, Aphididae, and their larvae and eggs.

[0027] More particularly, the present application provides a use of the insecticidal composition for preventing or controlling pests of the species Plutella xylostella, Adoxophyes spp., Tetranychus cinnabarinus, Bemisia tabaci, Frankliniella intonsa, Myzus persicae, and their larvae and eggs.

[0028] The present application provides a use of the insecticidal composition for treating seeds to prevent the seeds from being invaded by pests.

[0029] The insecticidal composition of the present application can be applied to seeds, plants or fruits of plants, or soil where plants grow or soil suitable for plant growth.

[0030] In another aspect, the present application also provides a method for preventing or controlling pests and their larvae and eggs by applying the insecticidal composition of the present application to target useful plants, target pests or their environment, or plant propagation materials. The plant propagation materials are seedlings, rhizomes, nursery seedlings, cuttings or seeds.

[0031] A method for preventing or controlling pests and their larvae and eggs by applying the insecticidal composition of the present application to seeds, target useful plants or soil where plants grow or soil suitable for plant growth.

[0032] A method for preventing or controlling pests and their larvae and eggs, the insecticidal composition of the present invention is applied to the soil before germination, after germination or before and after germination, and / or directly to the soil in contact with the roots of the plant or the soil suitable for plant growth.

[0033] A method for protecting seeds, comprising contacting the seeds with an insecticidally effective amount of the insecticidal composition of the present invention before sowing and / or after germination.

[0034] The plant can be listed as: the stems and leaves of the plant, the flowers of the plant, the fruits of the plant, etc.

[0035] The seeds are selected from the group consisting of soybean, wheat, barley, rye, sorghum, peanut, sunflower, sugarcane, tobacco, rice, oilseed rape, pakchoi, cabbage, sugar beet, tomato, cowpea, carrot, cotton and corn seeds.

[0036] A method for preventing or controlling pests, comprising separately, sequentially or simultaneously applying compound I, compound II.

[0037] The insecticidal composition of the present invention can be applied in any desired manner, such as seed coating, soil drenching and / or direct furrow application and / or foliar spraying, and before germination, after germination or before and after germination.

[0038] The insecticidal composition of the present invention contains active ingredients compound I and compound II, which solves at least one problem such as improving biological properties, providing synergistic properties, reducing dosage rate, expanding the activity spectrum, combining knockdown activity and long-acting effect, resistance management to delay resistance. DETAILED DESCRIPTION

[0039] In order to facilitate the understanding of 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.

[0040] The present invention finds that the combination of compound I and compound II can effectively prevent or control pests and their larvae and eggs. Surprisingly, the insecticidal composition of the present invention controls pests with much higher activity than the sum of the performance of the active compounds alone. This unexpected effect is a true synergistic effect, not just an additive effect.

[0041] The term "synergism" used herein refers to the insecticidal effect of the combination of active compounds or compositions of the present invention being greater than the sum of the effects of each active compound, or in other words, the effect is superadditive.

[0042] The present application provides an insecticidal composition containing active ingredient compound I and compound II, compound II is selected from one of the following compounds: spinosad, spinetoram, chlorfenapyr, sulfoxaflor, sulfoxaflor, emamectin benzoate, chlorfenapyr, ethofenprox, bifenthrin.

[0043] The present application provides an insecticidal composition containing active ingredient compound I and compound II, compound II is selected from spinosad or spinetoram.

[0044] The present application provides an insecticidal composition containing active ingredient compound I and compound II, compound II is selected from chlorfenapyr or sulfoxaflor.

[0045] The present application provides an insecticidal composition containing active ingredient compound I and compound II, compound II is selected from sulfoxaflor.

[0046] The present application provides an insecticidal composition containing active ingredient compound I and compound II, compound II is selected from emamectin benzoate.

[0047] The present application provides an insecticidal composition containing active ingredient compound I and compound II, compound II is selected from chlorfenapyr.

[0048] The present application provides an insecticidal composition containing active ingredient compound I and compound II, compound II is selected from ethofenprox or bifenthrin.

[0049] The combination mode of the insecticidal composition of the present application can be:

[0050] (1) compound I + spinosad;

[0051] (2) compound I + spinetoram;

[0052] (3) compound I + chlorfenapyr;

[0053] (4) compound I + sulfoxaflor;

[0054] (5) compound I + chlorfenapyr;

[0055] (6) compound I + sulfoxaflor;

[0056] (7) compound I + emamectin benzoate;

[0057] (8) compound I + ethofenprox;

[0058] (9) compound I + bifenthrin;

[0059] The weight ratio of the compound I and the compound II is typically in the range of 500: 1 to 1 : 500, more preferably 200: 1 to 1 : 200, preferably 100: 1 to 1 : 100, more preferably 50: 1 to 1 : 50, more preferably 25: 1 to 1 : 25, to achieve a synergistic effect.

[0060] The weight ratio of the compound I and the compound II according to the present application can also be, for example, 500: 1, 250: 1, 200: 1, 150: 1, 100: 1, 50: 1, 45: 1, 40: 1, 35: 1, 30: 1, 25: 1, 20: 1, 19: 1, 18: 1, 17: 1, 16: 1, 15: 1, 14: 1, 13: 1, 12: 1, 11 : 1, 10: 1, 9: 1, 8: 1, 7: 1, 6: 1, 5: 1, 4: 1, 3: 1, 2: 1, 1 : 1, 1 :2, 1 :3, 1 :4, 1 :5, 1 :6, 1 :7, 1 :8, 1 :9, 1 : 10, 1 : 11, 1 : 12, 1 : 13, 1 : 14, 1 : 15, 1 : 16, 1 : 17, 1 : 18, 1 : 19, 1 : 20, 1 : 25, 1 : 30, 1 : 35, 1 : 40, 1 : 45, 1 : 50, 1 : 100, 1 : 150, 1 : 200, 1 : 250, 1 : 500.

[0061] Particularly preferred are insecticidal compositions comprising compound I and spinosad or spinetoram; in such compositions, compound I and spinosad or spinetoram are present in synergistically effective amounts; preferably the weight ratio of compound I to spinosad or spinetoram is 50: 1 to 1 : 50, preferably 25: 1 to 1 : 25, preferably 20: 1 to 1 : 20, preferably 5: 1 to 1 : 20, further preferably 1 : 1 to 1 : 20.

[0062] Also preferred are insecticidal compositions comprising compound I and broflanalcil or chlorfenapyr; in such compositions, compound I and broflanalcil or chlorfenapyr are present in synergistically effective amounts; preferably the weight ratio of compound I to broflanalcil or chlorfenapyr is 50: 1 to 1 : 50, preferably 25: 1 to 1 : 25, preferably 20: 1 to 1 : 20, preferably 10: 1 to 1 : 10, further preferably 5: 1 to 1 : 5.

[0063] Also particularly preferred are insecticidal compositions comprising compound I and chlorfenapyr; in such compositions, compound I and chlorfenapyr are present in synergistically effective amounts; preferably the weight ratio of compound I to chlorfenapyr is 50: 1 to 1 : 50, preferably 25: 1 to 1 : 50, preferably 20: 1 to 1 : 50, preferably 10: 1 to 1 : 50, further preferably 5: 1 to 1 : 25.

[0064] Particularly preferred are insecticidal compositions comprising compound I and flonicamid; in such compositions compound I and flonicamid are present in synergistically effective amounts; preferably the weight ratio of compound I to flonicamid is from 50:1 to 1 :50, preferably from 25:1 to 1 :25, preferably from 20:1 to 1 :20, preferably from 10:1 to 1 :10, further preferably from 5:1 to 1 :5.

[0065] Particularly preferred are insecticidal compositions comprising compound I and methomyl; in such compositions compound I and methomyl are present in synergistically effective amounts; preferably the weight ratio of compound I to methomyl is from 500:1 to 1 :200, preferably from 250:1 to 1 :100, preferably from 250:1 to 1 :50, preferably from 200:1 to 1 :50.

[0066] Particularly preferred are insecticidal compositions comprising compound I and ethofenprox or bifenthrin; in such compositions compound I and ethofenprox or bifenthrin are present in synergistically effective amounts; preferably the weight ratio of compound I to ethofenprox or bifenthrin is from 50:1 to 1 :50, preferably from 25:1 to 1 :25, preferably from 20:1 to 1 :20, preferably from 10:1 to 1 :10, further preferably from 5:1 to 1 :5.

[0067] The preparation of compounds II and their action against pests is known. It can be found in The pesticide Manual, 16th edition and other publications.

[0068] The insecticidal compositions according to the application have good plant compatibility and advantageous homeotherm toxicity and are suitable for controlling pests, especially from the classes Insecta, Arachnida, Nematoda, which occur in agriculture, in forestry, in the protection of stored products and materials, and in the hygiene sector. They are active against normally sensitive and resistant species and against all or individual developmental stages and also achieve surprising "synergistic" effects in the prevention or control of pests.

[0069] The present application also provides the use of the insecticidal compositions according to the application for the prevention or control of pests. The term "pests" is used herein to mean any organism which can cause damage to the normal state of plants. This includes harmful insects from the classes Insecta, Arachnida, Nematoda.

[0070] The class Insecta includes the orders Lepidoptera, Coleoptera, Diptera, Hemiptera, Homoptera, Hymenoptera, Thysanoptera, Isop- tera, Diplopoda, Chilopoda, Scolioptera, Siphonaptera, Orthoptera, Dermaptera, Embioptera, Zoraptera, Blattaria, Mantodea.

[0071] Lepidoptera pests: Pyralidae such as Chilo suppressalis (Walker), Tryporyza incertulas (Walker), Cnaphalocrocis medinalis Guenee, Hellula undalis, Conogethes punctiferlis; Pieridae such as Pieris rapae, Papilio xuthus, Pieris rapae crucivora, Parnara guttata; Arctiidae such as Hyphantria cunea; Noctuidae such as Trichoplusia ni, Mamestra brassicae, Spodoptera exigua, Spodoptera litura, Helicoverpa armigera, Pseudaletia separate, Agrotis ipsilon; Tortricidae such as Adoxophyes orana fasciata, Archips fuscocureanus, Homona magnanima; Plutellidae such as Plutella xylostella; Gelechiidae such as Pectinophora gossypiella, Pink bollworm;

[0072] Hemipteran pests, for example: Aphididae, Adelgidae or Phylloxeridae, such as 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 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 and 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 pyrisuga, Diaphorina tabaci;

[0073] Coleopteran pests, for example: Sitophilus oryzae L., Podagricus melanigricollis Che, S. zeamalis, S. granarius, Cabbage leaf beetle, Daikon leaf beele, Flea beetle, Altica chalybea, Phyllotreta striolata, Epitrix cucumeris, E. hirtipennis, E. fuscula, Aulacophora indica (Gemlin), Phaedon cochleariae, Lissorhoptrus oryzophilus, Callosobruchus chienensis, Tenebrio molitor, Diabrotica virgifera virgifera, Diabrotica undecimpunctata howardi, Anomala cuprea, Anomala rufocuprea, Phyllotreta striolata, Aulacophora femoralis, Leptinotarsa decemlineata, Oulema oryzae, bostrychidae and Cerambycidae;

[0074] Dipteran pests, for example: Agromyza oryzae, Hydrellia griseola, Liriomyza trifolii, Chromatomyia horticola, Liriomyza bryoniae, Delia platura, Delia antiqua, Ceratitis capitata Wiedgman, Rhagoletis pomonella, R. cingulata.

[0075] Coleopteran pests, for example Lissorhoptrus oryzophilus, Callosobruchuys chienensis, Tenebrio molitor, Diabrotica virgifera virgifera, Diabrotica undecimpunctata howardi, Anomala cuprea, Anomala rufocuprea, Phyllotreta striolata, Aulacophora femoralis, Leptinotarsa decemlineata, Oulema oryzae, bostrychidae and cerambycidae;

[0076] Thysanoptera pests, for example, Thrips palmi, Frankliniella occidentalis, Thrips alliorum (Priesner), Thrips hawaiiensis (Morgan), Scirtothrips dorsalis Hood, Frankliniella intonsa (Trybom) and the like;

[0077] Thysanoptera pests, for example, Thrips palmi, Frankliniella occidentalis, Thrips alliorum (Priesner), Thrips hawaiiensis (Morgan), Scirtothrips dorsalis Hood, Frankliniella intonsa (Trybom) and the like;

[0078] Orthopteran pests, for example, Acrididae; megacopta punctatissimum, eurydemarugosum, eysarcoris lewisi, eysarcoris parvus, Nezara viridula, plautia stali, halymorpha mista, cletus punctiger, leptocoris a chinensis, stephantis pyrioides, trigonotylus coelestialium.

[0079] Hymenoptera pests, for example, athalia rosae-ruficornis, arge pagana, formica japonica, dryocosmus kuriphilus, and the like.

[0080] Isopoda, for example, Oniscus asellus, Armadilliudium vulgare, Porcellio scaber.

[0081] Diplopoda pests, for example, Blaniulus guttulatus.

[0082] Chilopoda pests, for example, Geophilus carpophagus Scutigera spp.

[0083] Siphonaptera pests, for example, Ctenocephalides felis.

[0084] Thysanura pests, for example, Lepisma saccharina.

[0085] Collembola pests, for example, Onychiurus armatus.

[0086] Orthopteran pests, for example, Acheta domesticus, Gryllotalpa spp., Locusta migratoria migratoria, Melanoplus spp., Schistocerca gregaria.

[0087] Blattodea pests, for example, Blatta orientalis, Periplaneta americana, Leucophaea maderae, Blattella germanica.

[0088] Dermaptera pests, for example, Forficula auricularia.

[0089] Isoptera pests, for example, Reticulitermes spp.

[0090] Siphunculata (Anoplura, Phthiraptera), for example, Damalinia spp., Haematopinus spp., Linognathus spp., Pediculus spp., Trichodectes spp.

[0091] Representative organisms of the class Nematoda (Nematoda) are selected from the group consisting of Meloidogyne spp., Heterodera spp., Globodera spp., Radopholus spp., Pratylenchus spp., Longidorus spp., and the like. Preferred are soybean cyst nematode (Heterodera), Globodera rostochiensis, Meloidogyne incognita, and the like.

[0092] The insecticidal composition of the present application is preferably particularly effective against Lepidoptera, Hemiptera, Diptera, Thysanoptera, Acarina pests.

[0093] In particular, the insecticidal composition of the present application is particularly effective against the following pests; specifically including the following pests:

[0094] Noctuidae such as Trichoplusia ni, Mamestra brassicae, Spodoptera exigua, Spodoptera litura, Helicoverpa armigera, Pseudaletia separate, Agrotis ipsilon;

[0095] Tortricidae such as Adoxophyes orana fasciata, Archips fuscocureanus, Homona magnanima;

[0096] Plutellidae such as Plutella xylostella;

[0097] Aleyrodidae such as Aleurodes brassicae, Bemisia tabaci, Trialeurodes vaporariorum;

[0098] Delphacidae such as Laodelphax striatellus, Nilaparvata lugens and Sogatella furcifera;

[0099] Tetranychidae such as Tetranychus cinnabarinus, Tetranychus urticae, Tetranychus viennensis, Oligonychus ununguis, Eotetranychus kankitus;

[0100] Panonychus spp. such as Panonychus citri, Panonychus ulmi;

[0101] Thripidae such as Thrips palmi, Frankliniella occidentalis, Thrips alliorum (Priesner), Thrips hawaiiensis (Morgan), Scirtothrips dorsalis Hood, Frankliniella intonsa (Trybom) and the like;

[0102] Aphididae such as Myzus persicae, Aphis gossypii, Brevicoryne brassicae, Rhopalosiphum padi;

[0103] Pseudococcidae such as Pseudococcus comstocki and Planococcus citri Risso.

[0104] In particular, the insecticidal composition of the present application exhibits a surprising "synergistic" effect on the prevention or control of Plutellidae, Tortricidae, Noctuidae, Delphacidae, Aleyrodidae, Tetranychidae, Thripidae, Aphididae, Pseudococcidae pests and their larvae and eggs.

[0105] The insecticidal composition of the present application unexpectedly exhibits a very high activity on the prevention or control of Plutellidae, Tortricidae, Noctuidae, Delphacidae, Aleyrodidae, Tetranychidae, Thripidae, Aphididae, Pseudococcidae pests and their larvae and eggs in the treatment of plants, plant propagation materials, soil where plants grow.

[0106] The insecticidal composition of the present application has an excellent control effect on Plutellidae, Tortricidae, Noctuidae, Delphacidae, Aleyrodidae, Tetranychidae, Thripidae, Aphididae, Pseudococcidae pests and their larvae and eggs at a low dose.

[0107] In another aspect, the present application also provides a use of the insecticidal composition for the prevention or control of Plutellidae, Tortricidae, Noctuidae, Delphacidae, Aleyrodidae, Tetranychidae, Thripidae, Aphididae, Pseudococcidae pests and their larvae and eggs.

[0108] The present application provides a use of the insecticidal composition for the prevention or control of Plutellidae, Tortricidae, Noctuidae, Delphacidae, Aleyrodidae, Tetranychidae, Thripidae, Aphididae, Pseudococcidae pests and their larvae and eggs.

[0109] The pesticidal compositions of the present application can be applied to any and all developmental stages of the pests, such as eggs, larvae, pupae, and adults. The pests can be controlled by contacting the target pests, their food supply, habitat, breeding grounds, or their locus with a pesticidally effective amount of the pesticidal compositions of the present application.

[0110] "Locus" means a plant, plant propagation material, soil, area, material, or environment in which the pests grow or can grow.

[0111] "Pesticidally effective amount" means the amount of the pesticidal compositions of the present application required to obtain an observable effect on growth, including a mortality, prophylactic or removal effect, a destruction effect, or an effect of reducing the occurrence and activity of animal pests. The pesticidally effective amount of the various pesticidal compositions used in the present application can vary. The pesticidally effective amount of the compositions will also vary depending on the primary conditions such as the desired pesticidal effect and duration, weather, target species, locus, mode of application, and the like.

[0112] According to the present application, all plants and their parts can be treated. "Plants" are to be understood as meaning all plants and all communities of plants such as wanted and unwanted wild plants or crop plants (including naturally occurring crop plants). Crop plants can be plants which can be obtained by conventional methods of breeding and optimization, or by mutagenesis and further genetic engineering methods or combinations of these methods, including transgenic plants and including plants which can or cannot be protected by plant breeders' certificates. Plant parts are to be understood as meaning all above- and below-ground parts and plant organs, such as shoot, leaf, flower and root, examples which can be mentioned being leaves, needles, stems, trunks, flowers, fruit bodies, fruits and seeds, and also roots, tubers and rhizomes. Plant parts also include harvested plants and vegetative and generative propagation material, for example seedlings, tubers, rhizomes, cuttings and seeds.

[0113] As mentioned above, all plants and their parts can be treated in accordance with the application. In accordance with the application, it is particularly preferred to treat plants of the plant cultivars which are in each case commercially available or in use at the time of the application.

[0114] The pesticidal compositions of the present application show particularly advantageous effects when used, for example, on the following plants:

[0115] Crop plants: corn, rice, wheat, barley, rye, oats, sorghum, cotton, soybean, peanut, buckwheat, sugar beet, leafy brassicas, oilseed rape, sunflower, sugar cane, tobacco, etc.

[0116] Vegetables: Solanaceae vegetables (eggplant, tomato, green pepper, chili pepper, potato, etc.), Cucurbitaceae vegetables (cucumber, pumpkin, summer squash, watermelon, melon, etc.), Brassicaceae vegetables (rape, radish, turnip, wasabi, kohlrabi, Chinese cabbage, round cabbage, mustard, broccoli, cauliflower, etc.), Asteraceae vegetables (burdock, artemisia japonica, chrysanthemum, lettuce, etc.), Liliaceae vegetables (onion, garlic, asparagus, etc.), Umbelliferae vegetables (carrot, parsley, parsnip, etc.), Chenopodiaceae vegetables (spinach, Swiss chard, etc.), Labiatae vegetables (perilla, mint, basil, etc.), strawberry, sweet potato, arrowroot, taro, etc.

[0117] Fruit trees: pome fruits (apple, European pear, Japanese pear, papaya), stone fruits (peach, plum, nectarine, Japanese apricot, yellow peach, apricot, Prunus domestica, etc.), citrus fruits (Satsuma mandarin, orange, lemon, lime, grapefruit, etc.), nuts (chestnut, walnut, hazel, almond, cashew, etc.), berry fruits (red raspberry, blackberry), grape, persimmon, olive, loquat, banana, coffee, date palm, coconut, oil palm.

[0118] Trees other than fruit trees: tea, mulberry, flowering trees (azalea, camellia, hydrangea, oil tea, Japanese anise, cherry, Lagerstroemia indica, golden osmanthus, etc.), street trees (birch, ginkgo, lilac, maple, oak, poplar, purple wisteria, sweetgum, plane tree, zelkova, Japanese cypress, fir, Japanese hemlock, juniper, pine, spruce, yew, elm, etc.), coral tree, podocarpus, cedar, croton, photinia, etc.

[0119] Lawn: St. Augustine grass (St. Augustine grass, St. Augustine grass, etc.), Bermuda grass (bermudagrass, etc.), bentgrass (tall fescue, red fescue, creeping red fescue, etc.), bluegrass (Kentucky bluegrass, bird grass, etc.), orchardgrass (toxic grass, ryegrass, etc.), wild grass, timothy, etc.

[0120] Others: flowers (roses, Dutch carnations, chrysanthemums, platycodon, gomphrena, gerbera, marigold, salvia, petunia, verbena, tulip, gentian, lily, pansy, cyclamen, orchid, lily of the valley, lavender, violet, kale, primula, euphorbia, daisy, orchid, begonia, etc.), biofuel plants (Jatropha, safflower, camelina, switchgrass, Miscanthus, reed canary grass, giant reed, kenaf, cassava, willow, etc.), ornamental plants, etc.

[0121] The insecticidal composition of the present application has good plant compatibility, is suitable for controlling pests, particularly Insecta, Arachnida, Nematoda, and fungi, rodents, microorganisms, etc.; particularly Plutellidae, Tortricidae, Noctuidae, Delphacidae, Whitefly, Tetranychidae, Thripidae, Aleyrodidae, Coccidae pests and their larvae and eggs. It is preferably suitable for foliar treatment, soil treatment and seed treatment.

[0122] In another aspect, the present application also provides a method for preventing or controlling pests and their larvae and eggs, by applying the insecticidal composition of the present application to target useful plants, target pests or their environment, or the propagation material of target useful plants. It can be performed before and after the plant, plant propagation material or environment is infested by pests.

[0123] The term "plant propagation material" is understood to mean all the plant parts which can be used for the multiplication of the latter, such as seeds, which are capable of developing into a plant, and vegetative plant material such as cuttings or tubers (e.g. potatoes). The plant parts used herein thus include plant propagation material. Mention can be made of seeds, for example, roots, fruits, tubers, bulbs, rhizomes and plant parts. Germinating plants and growing plants after germination from the soil or after emergence can be inhibited. Young plants can be protected by total or partial treatment before transplanting.

[0124] The plant propagation material is a seedling, a rhizome, a nursery plant, a cutting or a seed. Preferably, the seed.

[0125] The insecticidal composition of the present application can be applied to seeds, plants or fruits of plants or to the soil in which the plants grow or to the soil suitable for the growth of plants.

[0126] A method for protecting seeds, comprising contacting the seeds with an insecticidally effective amount of the insecticidal composition of the present application before sowing and / or after germination.

[0127] The plants can be listed as follows: stems and leaves of plants, flowers of plants, fruits of plants, etc.

[0128] The seeds are selected from the group consisting of soybean, wheat, barley, rye, sorghum, peanut, sunflower, sugarcane, tobacco, rice, oilseed rape, pakchoi, cabbage, sugar beet, tomato, cowpea, carrot, cotton and corn seeds.

[0129] Therefore, the present application provides a method for protecting seeds, seedling roots and shoots from soil and foliar insect attack, comprising contacting the seeds with an effective amount of the insecticidal composition of the present application before sowing and / or after germination.

[0130] The present application also provides a method for controlling or preventing pests and their larvae and eggs in plant propagation material and in plant organs, plant parts and / or plants growing therefrom, which comprises applying to the plant propagation material or its environment a pesticidal composition according to the present application. The plant propagation material is preferably seeds.

[0131] Most of the damage caused by pests to crop plants occurs early on the seed, during storage and after the seed has been sown and during or after the germination of the plant, when it is infested. This phase is particularly critical, because 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.

[0132] The present application also relates in particular to a method for protecting seeds and germinating plants from pests and their larvae and eggs by treating the seeds with a pesticidal composition according to the present application. The present application relates to a method for protecting seeds and germinating plants from pests of the families Plutellidae, Tortricidae, Noctuidae, Delphacidae, Whitefly, Tetranychidae, Thripidae, Aphididae, Coccidae and their larvae and eggs, which comprises treating the seeds simultaneously with compound I and compound II. It also comprises a method for treating the seeds with compound I and compound II at different times.

[0133] A method for preventing or controlling pests and their larvae and eggs, the seeds from which plants are expected to grow are treated with a synergistically effective amount of a pesticidal composition according to the present application before sowing and / or after the germination.

[0134] The present application also relates to the use of a pesticidal composition according to the present application for treating seeds in order to protect the seeds and the plants growing therefrom from pests and their larvae and eggs.

[0135] Furthermore, the present application also relates to seeds which have been treated with a pesticidal composition according to the present application and which are protected from pests and their larvae and eggs.

[0136] The present application also relates to seeds which are treated simultaneously with compound I and compound II. The present application also relates to seeds which are treated with compound I and compound II at different times. For seeds which are treated with compound I and compound II at different times, the individual active compounds of the pesticidal composition according to the present application can be present in different layers on the seed. Herein, the layers containing compound I and compound II can optionally be separated by an intermediate layer. The present application also relates to seeds wherein compound I and compound II are applied as coating components or as a layer outside the coating or as one or more additional layers.

[0137] The pesticidal compositions of the present application can be applied to seeds in any physiological state. Preferably, the seeds are in a sufficiently durable state so as not to be damaged during the treatment process. Generally, the seeds can be harvested from the field, removed from the plant, and separated from any husks, stems, hulls, and surrounding pulp or other non-seed plant material. The seeds can also preferably be biologically stable to the extent that the treatment does not cause biological damage to the seeds. The application to the seeds can be at any time between the harvesting of the seeds and the planting of the seeds or during the planting process. The seeds can also be pregerminated before or after the treatment.

[0138] The seeds treated with the pesticidal compositions of the present application can be stored, managed, planted, and cultivated.

[0139] The seed treatment takes place on un-planted seeds, the term "un-planted seeds" is intended to include seeds at any time between the harvesting of the seeds and the planting of the seeds in the ground for the purpose of germination and growth of the plants. Preferably, the treatment takes place before the seeds are planted, so that the planted seeds have been pre-treated with the compositions. In particular, seed coating or seed pelleting is preferred in the treatment with the compositions of the present application. After the treatment, the ingredients of the respective compositions adhere to the seeds and are thus available for the control of pests.

[0140] The seed treatment methods include all methods known to the person skilled in the art which are suitable for treating seeds, such as seed dressing, seed coating, seed soaking, seed film coating, seed multi-layer coating, seed encapsulation, seed impregnation, seed dusting and seed pelleting.

[0141] The compositions according to the present application can be applied to seeds, plants or fruits of plants or to the soil in which the plants grow or to the soil suitable for the growth of plants.

[0142] The present application also provides a method for preventing or controlling pests and their larvae and eggs, comprising applying the pesticidal compositions according to the present application to seeds, to target useful plants or to the soil in which the plants grow or to the soil suitable for the growth of plants.

[0143] In another aspect, the present application also provides a method for preventing or controlling pests and their larvae and eggs, comprising applying the pesticidal compositions according to the present application to the soil before the seeds germinate, after the seeds germinate or before and after the seeds germinate or directly to the soil in contact with the roots of the plants or to the soil suitable for the growth of plants.

[0144] The present application also provides a method for protecting plants from the attack of pests and their larvae and eggs, comprising applying the pesticidal compositions according to the present application to the environment, habitat or storage area in which the useful plants grow. The environment, habitat in which the plants grow means a support body, such as soil, water, etc., which enables the crops to take root and grow, and the raw materials used can be, for example, sand, pumice, vermiculite, diatomite, agar, gelatinous substances, high molecular substances, asbestos, wood chips, tree bark, etc. Preferably, the soil is used.

[0145] The present application also provides a method for protecting plants from attack by pests of the families Plutellidae, Tortricidae, Noctuidae, Delphacidae, Aleyrodidae, Tetranychidae, Thripidae, Aphididae, Coccidae, and their larvae and eggs, which comprises applying the active ingredient compounds I and II jointly, separately or in succession. In the case of separate application, the order generally has no influence on the result of the control measures.

[0146] A method for preventing or controlling pests, and their larvae and eggs, which comprises applying compounds I, II separately, in succession or simultaneously.

[0147] The present application also provides a method for protecting useful plants from attack by pests, and their larvae and eggs, which comprises applying to the target useful plants or their environment, to the target pests or their environment, to the propagation material of the target useful plants, a combination comprising compounds I and II, in any desired sequence or simultaneously.

[0148] The pesticidal compositions of the present application include not only ready-to-use compositions which can be applied to plants or plant propagation material with suitable devices, but also commercially customary concentrates which have to be diluted with water before application.

[0149] The pesticidal compositions of the present application can be applied undiluted or diluted with water.

[0150] The present application provides a method for preventing or controlling pests, and their larvae and eggs, by applying the pesticidal compositions of the present application to the target useful plants or their environment, to the propagation material of the target useful plants, other pesticides being able to be applied independently of one another before, simultaneously with or after the application of compounds I and II, and in the case of separate application of compounds I and II, each of the other pesticides being able to be applied independently of one another before, simultaneously with, between or after the application of compounds I and II.

[0151] The pesticidal compositions of the present application are generally applied in the following doses, which are common and advantageous:

[0152] for foliar treatment: 0.1 to 10000 g / ha, preferably 10 to 1000 g / ha, more preferably 10 to 500 g / ha, even more preferably 10 to 300 g / ha;

[0153] for seed treatment: 1 to 1000 g per 100 kg of seed, preferably 100 to 1000 g per 100 kg of seed;

[0154] for soil treatment: 1 to 10000 g / ha, preferably 10 to 1000 g / ha.

[0155] The above-mentioned doses are only general exemplary doses, and the application rate can be adjusted by those skilled in the art according to the actual situation and needs, especially according to the nature of the plants or crops to be treated and the pest situation, when actually applied.

[0156] The method for treating target pests, target useful plants, or seeds, soil with the insecticidal composition of the present application includes, for example, spreading treatment, soil treatment, surface treatment, and fumigation treatment. The spreading treatment includes, for example, spreading, spraying, spraying, atomization, granular application. The soil treatment includes, for example, soil irrigation and soil mixing. The surface treatment includes, for example, coating, covering. The fumigation treatment includes, for example, covering the soil with a polyethylene film after injecting into the soil.

[0157] The applicator usually uses the insecticidal composition of the present application for a small backpack sprayer, a spray tank, a spray plane, or an irrigation system. The insecticidal composition of the present application is usually formulated with water, a buffer, and / or other auxiliary agents to the desired application concentration, so as to obtain a ready-to-use spray liquid.

[0158] The total amount of the active ingredients in the insecticidal composition described in the present application can be selected according to specific factors to achieve the desired effect. The factors are, for example, the dosage form, the object to be applied, the application method, etc.

[0159] The present application provides an insecticidal composition containing active ingredient compound I and compound II, the total weight of the compound I and the compound II accounting for 1%-90%, preferably 5%-80%, more preferably 5%-70%, again preferably 5%-60%, more preferably 5%-50%, more preferably 10%-50%, more preferably 10%-40% of the insecticidal composition by weight.

[0160] An insecticidal composition containing active ingredient compound I and compound II, the total weight of the compound I and the compound II accounting for may, for example, also be 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%, 90% of the insecticidal composition by weight.

[0161] The insecticidal composition of the present application can optionally contain an agrologically acceptable surfactant and / or a filler and the like auxiliary ingredients. Preferably, the auxiliary ingredients are one or a mixture of dispersants, wetting agents, antifreezes, thickeners, antifoaming agents, disintegrants, binders, auxiliary carriers.

[0162] According to the present application, the term "filler" refers to a natural or synthetic organic or inorganic compound which can be combined or associated with the active compound in order to make it more easily applicable to the subject (for example a plant, a crop or a grass). The filler is therefore preferably inert, at least agronomically acceptable. The filler can be solid or liquid.

[0163] The non-active fillers which can be used in the present application can be both solid and liquid.

[0164] Examples of solid fillers which can be used are talc, bentonite, clay, kaolin, diatomaceous earth, white carbon, calcium carbonate, acid clay, silica, zeolite, siliceous magnesite, pumice, ammonium sulfate, sodium sulfate and urea.

[0165] The liquid fillers which can be used can be chosen, for example, from water, isopropyl alcohol, butanol, tetrahydrofuran, ethylene glycol, propylene glycol, ethyl acetate, methyl oleate, dimethylformamide, dimethylacetamide, dimethyl sulfoxide and vegetable oils.

[0166] To emulsify, disperse, solubilize and / or wet the active ingredient compound, a surfactant can be used, for example, a fatty alcohol polyoxyethylene ether, a polyoxyethylene alkyl aryl ether, a polyoxyethylene higher fatty acid ester, a phosphate ester of a polyoxyethylene alcohol or phenol, a fatty acid ester of a polyol, a naphthalene sulfonic acid polymer, a lignin sulfonate, a high molecular comb-shaped branched copolymer, a butyl naphthalene sulfonate, an alkyl aryl sulfonate, an alkyl sulfosuccinate, an oil, a fatty alcohol condensed with ethylene oxide, a polyacrylate of an alkyl naphthalene sulfonate, a protein hydrolysate, a suitable oligosaccharide or polymer, for example based on ethylene monomer alone, acrylic acid, polyoxyethylene and / or polyoxypropylene or a combination thereof with, for example, a (poly)alcohol or a (poly)amine.

[0167] To disperse, stabilize and adhere the active ingredient compound, an auxiliary agent such as xanthan gum, magnesium aluminum silicate, gelatin, starch, cellulose methyl ether, polyvinyl alcohol, polyvinyl acetate and natural phospholipids (such as cephalin and lecithin) and synthetic phospholipids, bentonite, sodium lignosulfonate and the like can be used.

[0168] As the antifreezing agent, ethylene glycol, propylene glycol, glycerol, sorbitol can be used. As the anti-flocculating agent for a suspension product, an auxiliary agent such as a naphthalene sulfonic acid polymer, a polymeric phosphate and the like can be used. As the antifoaming agent, a silicone antifoaming agent can be used. To improve the flowability of a solid product, an auxiliary agent such as paraffin, a stearate, an alkyl phosphate and the like can be used.

[0169] As the coloring agent, an inorganic pigment such as iron oxide, titanium oxide and Prussian blue; and an organic pigment / dye such as alizarin dye, azo dye and metal phthalocyanine dye; and a trace element such as an iron salt, a manganese salt, a boron salt, a copper salt, a cobalt salt, a molybdenum salt and a zinc salt can be used.

[0170] Optionally, other additional components such as protective colloids, adhesives, thickeners, thixotropic agents, penetration agents, stabilizers, sequestering agents can also be included.

[0171] The pesticidal compositions according to the present application can be used as such or, depending on their respective physical and / or chemical properties, in the form of their formulations or the use forms prepared therefrom, such as aerosols, capsule suspensions, cold fogging concentrates, hot fogging concentrates, microencapsulations, fine granules, flowable concentrates, ready-to-use solutions, dusts, emulsifiable concentrates, oil-in-water emulsions, water-in-oil emulsions, macrogranules, microgranules, oil- dispersible powders, oil miscible flowables, oil miscible liquids, foams, pastes, seed coatings, gels, suspoemulsions, water-soluble concentrates, suspensions, wettable powders, soluble powders, dusts and granules, water-soluble granules or tablets, water-soluble powders for seed treatment, wettable powders, active ingredient-impregnated natural products and synthetic substances, polymeric substances, microencapsulations in polymeric substances and seed coating substances, and also ultra-low-volume cold fogging and hot fogging formulations.

[0172] The preferred formulations of the pesticidal compositions according to the present application are emulsifiable concentrates, aqueous suspensions, oil suspensions, dry flowable concentrates for seed treatment, flowable concentrates for seed treatment, water-dispersible granules, wettable powders, suspoemulsions, emulsions, microencapsulations, dry flowable concentrates, ultra-low-volume liquids, microgranules, microemulsions.

[0173] The pesticidal compositions according to the present application can also be applied in combination with other active ingredients, such as fungicides, bactericides, attractants, insecticides, acaricides, nematicides, growth regulators, herbicides, safeners, fertilizers or semiochemicals.

[0174] The formulations according to the present application are prepared in known manner by mixing the active ingredients with the customary additives, such as customary extenders and also solvents or diluents, emulsifiers, dispersants, and / or binders or fixatives, wetting agents, de- waterers, if appropriate also with siccatives and colorants, stabilizers, pigments, antifoams, preservatives, thickeners, water and other processing auxiliaries.

[0175] The pesticidal compositions according to the present application include not only ready-to-use products which can be applied directly to the objects to be treated by means of suitable apparatus, such as spraying or dusting equipment, but also concentrated commercial compositions which require dilution before application to the objects.

[0176] The pesticidal compositions according to the present application can be applied in the form of a combination of the active ingredient compounds thereof in a formulation suitable for application, or in the form of a combination of the appropriate dosage forms of the commercial formulations thereof.

[0177] Formulation Examples

[0178] Example 1 Wettable powder

[0179] Compound I 5%

[0180] Spinosad 2.5%

[0181] Sodium lauryl sulfate 1%

[0182] Sodium lignosulfonate 9%

[0183] Kaolin ad 100%

[0184] The above ingredients are mixed in the proportions, and ground and pulverized to prepare a wettable powder.

[0185] Example 2 Water suspension

[0186] Compound I 10%

[0187] Chlorfenapyr 10%

[0188] Polystyrene phenyl ether sulfate 5%

[0189] 1% Xanthan gum aqueous solution 1%

[0190] Bentonite 1.5%

[0191] Propylene glycol 5%

[0192] Polysiloxane antifoam agent 0.05%

[0193] Water ad 100%

[0194] All the ingredients except 1% xanthan gum aqueous solution and an appropriate amount of water are premixed together, and then the mixture is ground by a wet mill. Finally, 1% xanthan gum aqueous solution and the remaining water are added to the ground product to prepare a water suspension.

[0195] Example 3 Emulsifiable concentrate

[0196] Compound I 3%

[0197] Bifenthrin 3%

[0198] Ethoxylated fatty alcohol 8%

[0199] Calcium dodecylbenzenesulfonate 5%

[0200] N,N-Dimethylformamide 20%

[0201] SOLVESSO 200 ad 100%

[0202] The above ingredients are uniformly mixed and dissolved to obtain an emulsifiable concentrate.

[0203] Example 4 Water dispersible granules

[0204] Compound I 25%

[0205] Methidathion 5%

[0206] Modified sodium lignosulfonate 2%

[0207] Talc 10%

[0208] Clay ad 100%

[0209] The above ingredients are mixed uniformly and ground, and a certain amount of water is added to mix and extrude to prepare the material. After drying and sieving, the water dispersible granules are obtained.

[0210] Example 5 Water suspension

[0211] Compound I 10%

[0212] Ethofenprox 10%

[0213] Polyoxyethylene styryl phenyl ether 3%

[0214] Sodium alkylnaphthalene sulfonate formaldehyde condensate 3%

[0215] 1% Xanthan gum aqueous solution 1%

[0216] Bentonite 0.35%

[0217] Propylene glycol 7%

[0218] Silicone antifoaming agent 0.03%

[0219] Water ad 100%

[0220] All the ingredients except 1% xanthan gum aqueous solution and an appropriate amount of water are premixed together, and then the mixture is ground by a wet mill. Finally, 1% xanthan gum aqueous solution and the remaining water are added to the ground product to prepare the water suspension.

[0221] Example 6 Water suspension

[0222] Compound I 4%

[0223] Sulfoxaflor 20%

[0224] Sodium lignosulfate 8%

[0225] 1% Xanthan gum aqueous solution 1%

[0226] Bentonite 0.35%

[0227] Propylene glycol 7%

[0228] Silicone antifoaming agent 0.05%

[0229] Water q.s. to 100%

[0230] All ingredients except 1% xanthan gum aqueous solution and appropriate amount of water are premixed together, and then the mixture is ground by a wet grinder. Finally, 1% xanthan gum aqueous solution and the remaining water are added to the ground product to prepare a water suspension.

[0231] The above proportions are weight percent proportions.

[0232] Biological test example

[0233] The expected effect of a particular combination of two active ingredients can be calculated using the so-called "Colby formula" (see S.R. Colby, "Calculating Synergistic and Antagonistic Responses of Herbicide Combinations", Weeds 1967, 15, 20-22):

[0234]

[0235] X is the control effect when using the active ingredient compound I in a use amount of m g / ha or a concentration of m ppm, expressed as a percentage of the untreated control,

[0236] Y is the control effect when using the active ingredient compound II in a use amount of n g / ha or a concentration of n ppm, expressed as a percentage of the untreated control,

[0237] E is the control effect when using the active ingredient compound I and compound II in use amounts of m and n g / ha or concentrations of m and n ppm, expressed as a percentage of the untreated control,

[0238] If the actual control effect exceeds the calculated value, the lethal effect of the combination is superadditive, i.e. there is a synergistic effect.

[0239] Test Example 1: Plutella xylostella test

[0240] Preparation of the test solution: The technical material of compound I and compound II are prepared into stock solutions with acetone, and then diluted with 0.1% Tween-80 aqueous solution to the desired concentration.

[0241] Select 2nd instar Plutella xylostella larvae that are continuously reared indoors and have consistent physiological states. Select cabbage leaves that grow consistently to make suitable leaf discs.

[0242] The leaf discs were immersed in the test agent solution, and after 10 s, they were taken out, dried, and placed in a culture dish containing moist filter paper, and the test insects were introduced. About 10 test insects were introduced per repetition. There were 4 repetitions per treatment. A treatment without the agent (containing organic solvents and emulsifiers) was used as a blank control.

[0243] The treated test insects were placed in a thermostat incubator at 25±1 o C, relative humidity 60%-80%, light cycle L:D=(16:8)h.

[0244] The results were checked after 48h in the incubator. The death judgment criteria were as follows: the insect body was completely unresponsive or could not respond normally when touched with a probe.

[0245] During the test, the agent solution was prepared accurately and without error, and the operation was skillful, fast, and standardized to ensure the accuracy of the test. When the mortality of the blank control exceeded 20%, the test was repeated.

[0246] Calculation method:

[0247] Mortality (%)=(number of live insects before treatment-number of live insects after treatment) / number of live insects before treatment x 100

[0248] Control effect %=( (treatment group mortality-control group mortality) / (100-control group mortality) ) x 100

[0249] Table 1 Effect of the combination of compound I and compound II on the diamondback moth

[0250]

[0251] Test example 2 Test of the chinch bug

[0252] Preparation of the agent solution: the technical compound I and compound II were prepared into a mother liquor with acetone, and then diluted to the required concentration with 0.1% Tween-80 aqueous solution.

[0253] The Frankliniella fusca was used as the test pest. The collected Frankliniella fusca was inoculated into the greenhouse potted eggplants for long-term feeding. Before the test, the Frankliniella fusca was selected by microscopy and fed on the greenhouse-grown eggplant plants (without other species of thrips). The feeding conditions were a glass screen room, natural light, and a cycle of about 16(L):8(D). The highest temperature was 28 o C, and the lowest temperature was 15 o C. The humidity was 95% at the highest and 65% at the lowest. The F1 generation adults were selected for testing. 20-40 heads were used as a group for indoor testing. The dipping method (NY / T 1154.6-2006) was used.

[0254] Tomato leaves with test adult thrips were cut, immersed in the pesticide solution for 5-10 seconds, then removed, and the excess pesticide solution on the leaves and thrips was absorbed with filter paper. The thrips were transferred to fresh non-toxic tomato leaves with a soft brush, placed in a culture jar, covered, and kept ventilated. The culture jar containing the treated thrips was placed in a constant temperature incubator at 25±1 o C, relative humidity 60%-80% for feeding and observation. Each treatment was repeated 4 times. A treatment without the pesticide (containing organic solvents and emulsifiers) was set as a blank control.

[0255] After 24 hours of treatment, the death of the test insects was investigated. The death criterion was that the insects showed no obvious reaction when touched with a soft brush. The total number of insects and the number of dead insects were recorded. The mortality rate and the control effect were calculated.

[0256] During the experiment, the pesticide solution was prepared accurately and without error. The operation should be skilled and fast, and the test operation should be standardized to ensure the accuracy of the test. If the mortality rate of the blank control test exceeds 20%, the test should be repeated.

[0257] Calculation method:

[0258] Mortality rate (%) = number of dead test insects / number of test insects before treatment x 100

[0259] Control effect % = ((mortality rate of the treatment group - mortality rate of the control group) / (100 - mortality rate of the control group)) x 100

[0260] Table 2 Test of the combination of compound I and compound II on Frankliniella fusca

[0261]

[0262] Test 3 Tomato Bemisia tabaci test

[0263] Pesticide solution preparation: Compound I and compound II technical material were prepared into a mother liquor with acetone, and then diluted to the required concentration with 0.1% Tween-80 aqueous solution.

[0264] Before the test, Bemisia tabaci was inoculated on the pest-free tomato seedlings planted in the insect-proof net chamber. When the F1 generation 2-3 instar nymphs were developed, tomato leaves were cut, and non-test insect stages such as eggs were removed under a microscope. Each leaf was used for 30-50 test nymphs, and was prepared for use.

[0265] Bemisia tabaci was soaked with the prepared pesticide solution together with tomato leaves for 5 seconds, then removed, and the excess pesticide solution was absorbed with water-absorbing paper and placed in a plastic beaker with a diameter of 6 cm and a height of 10 cm. After the test, it was transferred to a constant temperature incubator at 25±1 o C, relative humidity 60%-80% for feeding. Each treatment was repeated 4 times. A treatment without the pesticide (containing organic solvents and emulsifiers) was set as a blank control.

[0266] After 72h of treatment, the mortality of the test insects was examined under a microscope. The criteria for death were dry and yellowish color of the insect body. If the mortality of the control was greater than 20%, the test was repeated. The total number of insects and the number of dead insects were recorded. The mortality and control effect were calculated.

[0267] During the test, the preparation of the pesticide solution must be accurate and error-free. The operation must be skilled and fast, and the test operation must be standardized to ensure the accuracy of the test. If the mortality of the blank control test is more than 20%, the test must be repeated.

[0268] Calculation method:

[0269] Mortality (%) = number of dead test insects / number of test insects before treatment x 100

[0270] Control effect % = (mortality of the treatment group - mortality of the control group) / (100 - mortality of the control group) x 100

[0271] Table 3 Test of the combination of compound I and compound II on tomato whitefly

[0272]

[0273] Test 4 Cotton red spider mite test

[0274] Preparation of pesticide solution: Compound I and compound II technical material were prepared into a stock solution with acetone, and then diluted with 0.1% Tween-80 aqueous solution to the desired concentration.

[0275] Tetranychus cinnabarinus was continuously accumulated and fed on cotton seedlings in the laboratory, and the test insects were adult females. Healthy female adults with consistent physiological state were selected for testing. Double-sided tape was cut into 2 cm long and pasted on one end of a glass slide, then healthy female adults were selected and their backs were pasted on the double-sided tape (note that the legs, antennae and mouthparts should not be pasted), 30 per piece, placed in a container with wet sponge, covered with a lid, and placed in a 25±1 o After 2h, the dead and injured individuals were removed and 30 were added to each piece.

[0276] The leaf mite slide dipping method (NY / T 1154.12-2008) was used. The glass slide with red spider mites was dipped in the pesticide solution, shaken gently for 5s, then the excess pesticide solution was absorbed with water-absorbing paper, placed in a white porcelain disk padded with wet sponge, covered with a fresh-keeping film with good light transmission, and a small hole was made with an insect needle to ensure good ventilation. Each treatment was repeated 4 times. A blank control without pesticide (containing organic solvent and emulsifier) was also set up.

[0277] The white porcelain disk containing the treated red spider mites was placed in a temperature and humidity controlled room at 25±1 oC, the constant temperature incubator with relative humidity 60%-80% for feeding and observation.

[0278] After 48h treatment, the death of mites was judged by the lack of reaction of the legs or antennae or palps when touched with a soft brush under stereomicroscope. The number of dead mites was recorded.

[0279] During the experiment, the preparation of the pesticide solution must be accurate and without error; the operation must be skillful and fast, and the test operation must be standardized to ensure the accuracy of the test. If the mortality of the blank control test exceeds 20%, the test must be redone.

[0280] Calculation method:

[0281] Mortality (%) = number of dead mites / number of test mites before treatment x 100

[0282] Control effect % = (mortality of treatment group - mortality of control group) / (100 - mortality of control group) x 100

[0283] Table 4 Test of combination of compound I and compound II on T. abalitum

[0284]

[0285] The test results of Tables 1-4 show that the combination of compound I and compound II has an unexpected synergistic effect on the control of P. xylostella, thrips, B. tabaci and T. abalitum.

Claims

1. An insecticide composition comprising active ingredients Compound I and Compound II, Compound I, The compound II is selected from brofenoxamide or thiofenoxamide, and the weight ratio of the compound I to the compound II is 10:1-1:

10.

2. The insecticidal composition according to claim 1, characterized in that The weight ratio of compound I to compound II is 5:1-1:

5.

3. The insecticidal composition according to claim 1, characterized in that It may also contain surfactants and / or fillers.

4. The insecticidal composition according to claim 1, characterized in that The total weight of the compound I and compound II accounts for 1% to 90% by weight of the insecticide composition.

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

6. The insecticidal composition according to claim 1, characterized in that The insecticide composition has the following dosage forms: emulsifiable concentrate, water suspension concentrate, oil suspension concentrate, seed treatment dry powder, seed treatment suspension concentrate, water dispersible granules, wettable powder, suspoemulsion, water emulsion, microcapsule suspension, dry suspension concentrate, ultra-low volume liquid, microgranules, and microemulsion.

7. Use of the insecticidal composition of claim 1 for preventing or controlling pests and their larvae and eggs, wherein when Compound II is selected from brofenoxamide, the pest is Plutella xylostella or Thrips tabaci; and when Compound II is selected from thiobencarb, the pest is Plutella xylostella.

8. A method for preventing or controlling pests and their larvae and eggs, 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. When compound II is selected from brofenoxamide, the pest is Plutella xylostella or Thrips tabaci; when compound II is selected from thiobencarbamide, the pest is Plutella xylostella.

9. A method for preventing or controlling pests and their larvae and eggs, characterized in that: The insecticide composition of claim 1 is applied to seeds, target useful plants or soil where plants grow. When compound II is selected from brofenoxamide, the pest is diamondback moth or tabaci thrips; when compound II is selected from thiobencarbamide, the pest is diamondback moth.

10. A method for preventing or controlling pests and their larvae and eggs, characterized in that: The insecticide composition of claim 1 is applied to the soil before, after, or before or after seed germination. When compound II is selected from brofenoxamide, the pest is diamondback moth or tabaci thrips; when compound II is selected from sulfanilamide, the pest is diamondback moth.

11. A method for protecting seeds, 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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