Pesticidal compositions containing pyrazole compounds and uses thereof
By combining pyrazole compounds with other insecticides in specific weight ratios to achieve a synergistic effect, the problems of pest resistance and environmental toxicology are solved, and the effect of highly efficient pest control at low doses is achieved.
Patent Information
- Application Number
- CN202180095941.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2021-12-08
- Publication Date
- 2025-12-16
- Estimated Expiration
- 2041-12-08
AI Technical Summary
In the prior art, the resistance of pests to insecticides leads to insufficient control effect at low application rates, and the use of insecticides brings environmental and toxicological effects. There is a need for an insecticidal composition that can still effectively control pests even with reduced dosage of active ingredients.
An insecticidal composition containing a pyrazole compound of formula (I) and a compound selected from chlorthiazoline, cyclooxygenated acetamiprid, flupyrfuranone, piperazine, ivermectin, pyriproxyfen, chlorantraniliprole, methoxyfenozide, lufenuron, etc., is combined in a specific weight ratio to achieve a synergistic effect and improve the control effect.
With reduced application rates of components (A) and (B), the insecticidal composition exhibited highly effective pest control, achieving unexpected synergistic effects and effectively controlling pests such as Thysanoptera, Diptera, and Hemiptera.
Smart Images

Figure BDA0004454497740000011 
Figure BDA0004454497740000021 
Figure BDA0004454497740000111
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to an insecticidal composition containing a pyrazole compound represented by formula (I) and its use for controlling animal pests. The present application also relates to a method of preventing and / or treating infestation of pests in plants, plant propagation material and / or the surrounding environment by said insecticidal composition. BACKGROUND
[0002] A pyrazole compound represented by the following formula (I) is described in patent document WO2012 / 143317A1 and it is stated that it shows excellent effects against various harmful organisms, in particular, against cowpea aphids, cotton aphids, cotton whiteflies, rice planthoppers, thrips, diamondback moth, etc. The activity of this substance is very good, but there are still deficiencies at low application rates.
[0003]
[0004] Chemical control is an important way to prevent or control pests in agriculture. However, more and more pests of crops, fruits, vegetables, etc. have been reported to develop resistance in the world. Although the alternation of insecticides with different modes of action can be used in good pest management practices, this method does not always achieve satisfactory pest control effects.
[0005] In order to reduce or avoid adverse environmental or toxicological effects caused by the application of insecticides, the present application aims to provide an insecticidal composition containing a pyrazole compound of formula (I) which can provide effective pest control effects at a reduced dosage rate of the active ingredient. SUMMARY
[0006] The present application relates to an insecticidal composition comprising component (A) and component (B), component (A) is a pyrazole compound represented by formula (I), and component (B) is at least one compound selected from chlorothalonil, cyhalothrin, flupyradifurone, pymetrozine, ivermectin, pyridalyl, chlorantraniliprole, methoxyfenozide, hydroprene.
[0007]
[0008] The insecticides for pest control that have been studied show that it is not easy to obtain a high synergistic control effect. Surprisingly, the insecticidal composition of the present application still exhibits a highly effective pest control effect and achieves an unexpected synergistic effect, even when component (A) and component (B) become completely ineffective at a low application rate range, at a reduced application rate of component (A) and component (B).
[0009] The term "synergistic effect" as used herein refers to a synergistic effect obtained when two or more active compounds are combined, wherein the combined activity of the two or more active compounds exceeds the sum of the activities of the individual active compounds.
[0010] The presence of a synergistic effect is determined using the method described in Colby S.R., "Calculating Synergistic and Antagonistic Responses of Herbicide Combinations," Weeds, 1967, 15, 20-22.
[0011] The pesticidal compositions of the present application can preferably comprise a combination of the following components:
[0012] (1 ) a compound of formula I and (B) chlorantraniliprole;
[0013] (2) a compound of formula I and (B) cyenopyrafen;
[0014] (3) a compound of formula I and (B) flupyradifurone;
[0015] (4) a compound of formula I and (B) pymetrozine;
[0016] (5) a compound of formula I and (B) ivermectin;
[0017] (6) a compound of formula I and (B) pyriproxyfen;
[0018] (7) a compound of formula I and (B) chlorantraniliprole;
[0019] (8) a compound of formula I and (B) methoxyfenozide; and
[0020] (9) a compound of formula I and (B) hydroprene.
[0021] The pesticidal compositions of the present application can more preferably comprise a combination of the following components:
[0022] (2) a compound of formula I and (B) cyenopyrafen;
[0023] (3) a compound of formula I and (B) flupyradifurone;
[0024] (7) a compound of formula I and (B) chlorantraniliprole; and
[0025] (9) a compound of formula I and (B) hydroprene.
[0026] The particularly pronounced improvement effect is exhibited when components (A) and (B) are present in a specific weight ratio. Specifically, the weight ratio of components (A) and (B) in the pesticidal composition according to the application is preferably from about 200: 1 to about 1 : 200, preferably from about 100: 1 to about 1 : 100, more preferably from about 50: 1 to about 1 : 50, more preferably from about 25: 1 to about 1 : 25.
[0027] Specifically, the weight ratio of components (A) and (B) in the pesticidal composition according to the application can be, for example, 200: 1, 150: 1, 120: 1, 100: 1, 90: 1, 80: 1, 70: 1, 60: 1, 50: 1, 40: 1, 30: 1, 20: 1, 16: 1, 15: 1, 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 : 70, 1 : 80, 1 : 90, 1 : 100, 1 : 120, 1 : 150 or 1 : 200.
[0028] Preferably, when component (B) is selected from cyanofenphome, and the weight ratio of components (A) and (B) is 10: 1 to 1 : 50, it can be, for example, 10: 1, 5: 1, 1 : 1, 1 :5, 1 : 10, 1 : 15, 1 : 20, 1 : 25, 1 : 30, 1 : 40 or 1 : 50, preferably 5: 1 to 1 : 25, more preferably 1 : 1 to 1 : 20.
[0029] Preferably, when component (B) is selected from cyanofenphome, and the weight ratio of components (A) and (B) is 10: 1 to 1 : 50, it can be, for example, 10: 1, 5: 1, 1 : 1, 1 :5, 1 : 10, 1 : 15, 1 : 20, 1 : 25, 1 : 30, 1 : 40 or 1 : 50, preferably 5: 1 to 1 : 25, more preferably 1 : 1 to 1 : 20.
[0030] Preferably, when component (B) is selected from cyanofenphome, and the weight ratio of components (A) and (B) is 10: 1 to 1 : 50, it can be, for example, 10: 1, 5: 1, 1 : 1, 1 :5, 1 : 10, 1 : 15, 1 : 20, 1 : 25, 1 : 30, 1 : 40 or 1 : 50, preferably 5: 1 to 1 : 25, more preferably 1 : 1 to 1 : 20.
[0031] Preferably, when component (B) is selected from chlorfluazuron, and the weight ratio of components (A) and (B) is from 50:1 to 1 :50, for example it can be 50:1, 40:1, 30:1, 20:1, 16:1, 15:1, 10:1, 5:1, 1 :1, 1 :5, 1 :10, 1 :15, 1 :20, 1 :30, 1 :40 or 1 :50, preferably from 40:1 to 1 :40, more preferably from 25:1 to 1 :25.
[0032] The use of the insecticidal compositions described herein for the protection of plants, plant propagation material and / or the locus thereof from attack by animal pests. The animal pests are selected from the orders Thysanoptera, Diptera and Hemiptera.
[0033] Preferably, the animal pests are selected from the families Thripidae and Aphididae.
[0034] A method for the protection of growing plants from attack by animal pests, which comprises contacting the plants with an insecticidally effective amount of an insecticidal composition described herein.
[0035] A method for the protection of growing plants from attack by animal pests, which is carried out before and after infestation of the plants, plant propagation material and / or the locus thereof by the pests.
[0036] A method for the protection of seeds from soil insects and for the protection of the roots and shoots of plants from soil and foliar insects, which comprises contacting the seeds before sowing and / or after pregermination with an insecticidal composition described herein.
[0037] The components (A) and (B) described herein can be applied and used as solid active compounds in pure form, for example in a specific particle size, or, preferably, in the form of customary formulation technology together with at least one auxiliary, for example one or more inert fillers or surfactants.
[0038] The components (A) and (B) described herein can be present together in the insecticidal compositions in suitable amounts, and are typically present in amounts of from about 1 to about 90% by weight of the composition, for example 1%, 5%, 10%, 20%, 25%, 30%, 35%, 40%, 45%, 50%, 60%, 70%, 80% or 90% by weight; preferably from about 1 to about 60% by weight of the composition, more preferably from about 1 to about 40% by weight of the composition.
[0039] Generally, the components (A) and (B) are used in the form of a preparation together with one or more conventional adjuvants. Examples of the type of preparation for a premix composition are: soluble liquid (SL), emulsifiable concentrate (EC), aqueous emulsion (EW), microemulsion (ME), oil miscible liquid (OD), flowable suspension (FS), water dispersible granules (WG), soluble granules (SG), wettable powder (WP), soluble powder (SP), granules (GR), capsule suspension (CS), microgranules (MG), or preferably, suspension concentrate (SC).
[0040] Suitable inert fillers are known in the art and commercially available. Suitable solid inert fillers include, for example, micropowders or granules of clay (kaolin, diatomaceous earth, bentonite, acid clay, etc.), talc and its derivatives, ceramics, other inorganic minerals (calcium ferrite, quartz, activated carbon, calcium carbonate, hydrated silicon oxide, etc.), chemical fertilizers (ammonium sulfate, ammonium phosphate, ammonium nitrate, urea, ammonium chloride, etc.), etc. Suitable liquid inert fillers include, for example, water; esters such as ethyl acetate, butyl acetate, etc.; amides such as N,N-dimethylformamide, N,N-dimethylacetamide, etc.; dimethyl sulfoxide; vegetable oils such as soybean oil, cottonseed oil, etc.; and the like.
[0041] Suitable surfactants can be emulsifiers, dispersants or wetting agents of the ionic or non-ionic type. Examples which can be used are salts of polyacrylic acid, salts of lignosulfonic acid, salts of benzenesulfonic acid or naphthalenesulfonic acid, condensation products of ethylene oxide with fatty alcohols or with fatty acids or with fatty amines, substituted phenols (especially alkylphenols), salts of sulfosuccinic esters, taurine derivatives (especially alkyl taurine salts), or phosphoric esters of polyethoxylated phenols or alcohols.
[0042] The pesticidal composition is very effective in protecting crops from pests. The pests are, for example, but not limited to, Orthoptera pests, Thysanoptera pests, Hemiptera pests, Coleoptera pests, Diptera pests, Lepidoptera pests, Hymenoptera, Acarina, Isoptera, Acarina pests, and the like harmful organisms. As examples of such harmful organisms, the following can be exemplified.
[0043] Hemipteran pests, for example: Aphididae, Adelgidae or Phylloxeridae, such as Macrosiphum avenae, Metopolophium dirhodum, Rhopalosiphum padi, Schizaphis graminum, Myzus persicae, Aphis gossypii, Aphis fabae, Aphis maidis (Maize aphid), Acyrthosiphon pisum, Aulacorthum solani, Aphis craccivora, Macrosiphum euphorbiae, 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, 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;
[0044] Thysanoptera pests, such as Thrips palmi, Frankliniella occidentalis, Thrips alliorum (Priesner), Thrips hawaiiensis (Morgan), Scirtothrips dorsalis Hood, Frankliniella intonsa (Trybom) and the like;
[0045] Diptera pests, such as agromyza oryzae, Hydrellia griseola, Liriomyza trifolii, Chromatomyia horticola, Liriomyza bryoniae, Delia platura, Delia antiqua, Ceratitis capiata wiedgman, Rhagoletis pomonella, R. cingulata and the like;
[0046] Lepidoptera pests, such as Pyralidae, for example, Chilo suppressalis (Walker), Tryporyza incertulas (Walker), cnaphalocrocis medinalis Guenee, hellulla undalis, conogethes punctiferlis; Pieridae, for example, Pieris rapae, papilio xuthus, pieris rapae crucivora, parna r aguttata; Arctiidae, for example, hyphantria cunea; Noctuidae, for example, trichoplusia ni, mamestra brassicae, spodoptera exigua, spodoptera litura, helicoverpa armigera, pseudaletia separate, agrotis ipsilon; Tortricidae, for example, adoxophyes orana fasciata, archips fuscocureanus, homona magnanima; Plutellidae, for example, plutella xylostella; Gelechiidae, for example, pectinophora gossypiella, pink bollworm, and the like;
[0047] Coleopteran pests, such as, for example, S. oryzae Linne, Podagricus melanigricollis Che, S. zeamails, S. granarius, Cabbage leaf beetle, Daikon leaf beele, flea beetle, Altica chalybea, Phyllotreta striolata, Epitrix cucumeris, Ehirtipennis, E. fuscula, Aulacophora indica (Gemlin), Lissorhoptrus oryzophilus, Callosobruchuys chienensis, Tenebrio molitor, Diabrotica virgifera virgifera, Diabrotica undecimpunctata howardi, Anomala cuprea, Anomala rufocuprea, Phyllotreta striolata, Aulacophora femoralis, Leptinotarsa decemlineata, Oulema oryzae, and Cerambycidae, etc.;
[0048] Tetranychus urticae, Tetranychus viennensis, Oligonychus ununguis, Eotetranychus kankitus, Brevipalpus phoenicis, Beyrobia redivergi, Aceria tulipae, Colomerus vitis, Calacarus carinatus, Polyphagotarsonemus latus, Rhizoglyphus rostrochienis, Acerus siro, Aceria sheldoni, Aculus schlechtendali, Phyllocoptes oleiverus ashmead, and the like;
[0049] Orthopteran pests, for example Acrididae; Megacopta punctatissimum, Eurydemarugosum, Eysarcoris lewisi, Eysarcoris parvus, Nezara viridula, Plautia stali, Halymorpha mista, Cletus punctiger, Leptocorisa chinensis, Stephantis pyrioides, Trigonotylus coelestialium.
[0050] The insecticidal compositions of the present application are particularly useful for controlling insects, preferably sucking or piercing-sucking insects, such as insects from the orders of Thysanoptera, Diptera and Hemiptera.
[0051] Thysanoptera pests, such as Thrips palmi, Frankliniella occidentalis, Thrips alliorum (Priesner), Thrips hawaiiensis (Morgan), Scirtothrips dorsalis Hood, Frankliniella intonsa (Trybom) and the like;
[0052] Diptera pests, such as agromyza oryzae, hydrellia griseola, liriomyza trifolii, chromatomyia horticola, liriomyza bryoniae, delia platura, delia antiqua, ceratitis capiata wiedgman, Rhagoletis pomonella, R. cingulata;
[0053] 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, for example Eysarcoris ventralis, Nezara viridula; Aleyrodidae, such as Bemisia tabaci and Trialeurodes vaporariorum; Diaspididae, Margarodidae, Ortheziidae, Aclerdiae, Dactylopiidae, Kerridae, Pseudocoddidae; Coccidae; Eriococcidae; Asterolecaniidae, Lecanodiaspididae;or Cerococcidae, for example Pseudococcus comstocki and Planococcus citri Risso; Psyllidae such as Psylla pyrisuga, Diaphorina tabaci.
[0054] The insecticidal compositions of the present application are particularly useful for controlling aphids and thrips. For example, Macrosiphum euphorbiae, Macrosiphum avenae, Metopolophium dirhodum, Rhopalosiphum padi, Schizaphis graminum, Myzus persicae, Aphis gossypii, Aphis fabae, Aphis maidis (corn leaf aphid), Acyrthosiphon pisum, Aulacorthum solani, Aphis craccivora, Brevicoryne brassicae, Lipaphis erysimi, Aphis citricola, Rosy apple aphid, Eriosoma lanigerum, Toxoptera aurantii and Toxoptera citricidus; Thrips palmi, Frankliniella occidentalis, Thrips alliorum (Priesner), Thrips hawaiiensis (Morgan), Scirtothrips dorsalis Hood, Frankliniella intonsa (Trybom) and the like.
[0055] The insecticidal compositions of the present application are particularly important for the control of a wide variety of insects on a variety of cultivated plants. It has been surprisingly found that when the insecticidal compositions of the present application are applied to plants, plant propagation material and / or the surroundings of the plants, particularly on cereals, root crops, oil crops, vegetables, spice crops, ornamental plants, for example, durum and other wheat, barley, oats, rye, maize, soybean, oil crops, crucifers, cotton, sunflower, banana, rice, oilseed rape, swede, sugar beet, fodder beet, eggplant, potato, grasses, turf, turf, fodder grasses, tomato, leek, pumpkin, cabbage, lettuce, pepper, cucumber, melon, Brassica, melon, bean, pea, garlic, onion, carrot, tuber plants such as potato, sugar cane, tobacco, grape, excellent and synergistic performance in the control and treatment of infestations by pests can be observed. Plants refer to growing crops and harvested plants.
[0056] The insecticidal compositions of the present application can be used to protect growing plants from attack or infestation by animal pests by contacting the plants with an insecticidally effective amount of the insecticidal compositions of the present application. Application of the insecticidal compositions of the present application can be made both before and after the plants, plant propagation material and / or the surroundings of the plants have been infested by the pests.
[0057] The insecticidal compositions of the present application can also be used to protect growing plants from attack or infestation by pests by contacting the plants with an insecticidally effective amount of the insecticidal compositions of the present application.
[0058] Components (A) and (B) can be applied in any desired order, in any combination, consecutively or simultaneously. In addition, in the case of simultaneous application of components (A) and (B), they can be applied as a composition comprising components (A) and (B). In this case, components (A) and (B) can be obtained from separate formulation sources and mixed together, optionally together with other pesticides (so-called tank-mix, ready-to-use, spray tank or slurry), or components (A) and (B) can be obtained as a single formulation mixture source (so-called pre-mix, concentrate, formulated compound (or product)), and optionally together with other pesticides.
[0059] The application rate of the compositions of the present application can vary depending on factors such as the type of application, the type of crop, the specific active compounds in the composition, the type of plant. Generally, the formulations can be diluted with water in the range of about 1 to about 1000 grams of active ingredient per hectare, preferably in the range of about 10 to about 500 grams of active ingredient per hectare, and most preferably in the range of about 10 to about 300 grams of active ingredient per hectare.
[0060] As used herein, "plants" refers to all plants and plant populations, such as wanted and unwanted wild plants or crop plants.
[0061] The insecticidal compositions of the present application are suitable for treating plant propagation material, especially seeds, to protect against pests, especially soil pests, and to protect the roots and shoots of the plants resulting therefrom against soil pests and foliar insects; preferably to protect the roots and shoots of the plants resulting therefrom. More preferably to protect the shoots of the plants resulting therefrom against piercing-sucking insects, and most preferably to protect against aphids.
[0062] The present application provides a method of protecting seeds against soil insects and of protecting the roots and shoots of plants against soil and foliar insects, which comprises contacting the seeds with the insecticidal compositions of the present application before sowing and / or after pregermination. Particularly preferred is a method of protecting the roots and shoots of plants, more preferred is a method of protecting the shoots of plants against piercing-sucking insects, and most preferred is a method of protecting the shoots of plants against aphids.
[0063] Suitable seeds are seeds of cereals, root crops, oil crops, vegetables, spice crops, ornamentals, such as durum and other wheat, barley, oats, rye, maize, soybeans, oil crops, cruciferous crops, cotton, sunflower, banana, rice, oilseed rape, swede, sugar beet, fodder beet, eggplant, potato, grasses, turf, turf grass, fodder grass, tomato, leek, pumpkin, cabbage, lettuce, pepper, cucumber, melon, Brassica, melon, bean, pea, garlic, onion, carrot, tuber plants such as potato, sugar cane, tobacco, grape, petunia, pelargonium / geranium, pansy and impatiens.
[0064] The application to seeds is carried out before sowing, either directly on the seeds or after the seeds have been pregerminated. Seed treatment includes all suitable seed treatment techniques known in the art, such as dressing, coating, dusting, soaking and pelleting of seeds.
[0065] In seed treatment, the insecticidal compositions of the present application are usually applied at a rate of 0.1 g to 10 kg per 100 kg of seeds, preferably 1 g to 5 kg per 100 kg of seeds, more preferably 1 to 1000 g per 100 kg of seeds, and especially 1 to 200 g per 100 kg of seeds.
[0066] The term "plant propagation material" includes, but is not limited to, true seeds, seed pieces, cuttings, bulbs, tubers, fruits, rhizomes, seedlings, cut shoots and the like, and in a preferred embodiment refers to true seeds.
[0067] The present application has at least the following advantages compared to the prior art:
[0068] The insecticidal composition containing the pyrazole compound provided by the present application shows a highly effective pest control effect and achieves an unexpected synergistic effect. DETAILED DESCRIPTION
[0069] Biological test:
[0070] Test Example 1 Test on thrips
[0071] Test object: 2nd instar nymphs of cucumber yellow thrips, the test thrips were collected from the population on cucumber in Dongfang farm, Xinzhen, Zhou city, Kunshan, Jiangsu.
[0072] Test agent: the components (A) and (B) were formulated into a mother liquor with acetone, and then diluted to the required concentration with 0.1% Tween-80 aqueous solution.
[0073] Fresh and tender cowpea pods were cut into pieces with a length of about 2 cm (the two ends of the pod were flat, and no bean holes were left to facilitate the result investigation), and immersed in the pesticide solution for 15 s, with water (containing solvent and Tween) as the control. The treated fruit pods were placed on absorbent paper to dry naturally, and then placed in a centrifuge tube with a pair of tweezers, with 1 pod per tube.
[0074] The worms were sucked into a self-made sucking device, and then the test worms were ejected into the pesticide tube, with 20 worms per tube. All the treatments were placed in a 25°C, 12H / 12H light incubator for culture, and the number of live worms was investigated after 72 h, and the worm reduction rate and control effect were calculated. Each treatment was repeated 4 times.
[0075] Calculation method:
[0076] Worm reduction rate (%) = (number of live worms before treatment - number of live worms after treatment) / number of live worms before treatment x 100
[0077] Control effect % = ((treatment group worm reduction rate - control group worm reduction rate) / (100 - control group worm reduction rate)) x 100
[0078] Table 1 Control effect of the combination of the compound represented by formula I and component (B) on thrips
[0079]
[0080] Test Example 2 Activity on wheat two-spotted aphids
[0081] The active components were applied as dry seed dressing. They were prepared by mixing the individual active compounds or combinations of active compounds with finely ground mineral material to give a fine powdery composition which is uniformly distributed on the seed surface.
[0082] When the seeds were dressed, each agent was adjusted to a slurry according to the designed dose, then the seeds and the pesticide solution were shaken in a closed glass flask for 3 minutes, after the seeds were evenly coated with the pesticide, they were poured out and spread in a well-ventilated place, and then sowed after drying.
[0083] The test soil and sand were from the same source and were not treated with any pesticides. 60 seeds of wheat were planted for each treatment, 3 replicates, 20 seeds for each replicate. All the treated pots were placed in a controlled sunlight greenhouse at 15°C. The growth of the crops was observed. After emergence, 15 plants of wheat were planted for each pot. 10 aphids were introduced for each pot on the 7th day after emergence. 5 days after the introduction of the aphids, the number of live aphids was counted and the reduction rate of aphid population and the control effect were calculated.
[0084] Calculation method:
[0085] Reduction rate of aphid population (%) = (number of live aphids before treatment - number of live aphids after treatment) / number of live aphids before treatment x 100
[0086] Control effect (%) = ((reduction rate of aphid population of the treatment group - reduction rate of aphid population of the control group) / (100 - reduction rate of aphid population of the control group)) x 100
[0087] Table 2 Activity of the combination of the compound of Formula I and component (B) against Sitobion avenae
[0088]
[0089]
[0090] Tables 1 and 2 show that the insecticidal composition of the present application exhibits excellent and synergistic performance in preventing and treating the invasion of pests.
Claims
1. An insecticidal composition containing a pyrazole compound, comprising components (A) and (B), Component (A) is a pyrazole compound represented by formula (I); Component (B) is selected from cyclopyridine, and the weight ratio of components (A) and (B) is 25:1 to 1:25; Alternatively, component (B) is selected from flupyrfuranone, and the weight ratio of components (A) and (B) is 50:1 to 1:
20.
2. The insecticidal composition according to claim 1, wherein, The component (B) is selected from cyclopyridine, and the weight ratio of the components (A) and (B) is 10:1 to 1:
1.
3. The insecticidal composition according to claim 2, wherein, The component (B) is selected from cyclopyridine, and the weight ratio of the components (A) and (B) is 5:1 to 1:
1.
4. The insecticidal composition according to claim 1, wherein, The component (B) is selected from flupyrfuranone, and the weight ratio of the components (A) and (B) is 20:1 to 1:
10.
5. The insecticidal composition according to claim 4, wherein, The component (B) is selected from flupyrfuranone, and the weight ratio of the components (A) and (B) is 16:1 to 1:
5.
6. Use of the insecticidal composition of claim 1 applied to plants, plant propagation material and / or their surrounding environment to prevent animal pests from attacking them.
7. The use according to claim 6, wherein the animal pest is selected from the orders Thysanoptera, Diptera, and Hemiptera.
8. The use according to claim 7, wherein the animal pest is selected from thrips and aphids.
9. A method for protecting growing plants from animal pests, wherein, The plant is brought into contact with an effective amount of the insecticidal composition according to claim 1.
10. The method according to claim 9, wherein, Before and after the plant, plant propagation material and / or its surrounding environment are infested by pests, the plant is exposed to an effective amount of the insecticidal composition of claim 1.
11. A method for protecting growing plants from animal pests, wherein, The plant is brought into contact with the insecticidal composition of claim 1.
12. A method for protecting seeds from soil insects and for protecting plant roots and shoots from soil and leaf insects, comprising contacting the seeds with the insecticidal composition of claim 1 before sowing and / or after pre-germination.
Citation Information
Patent Citations
Novel pesticidal pyrazole compounds
WO2012143317A1
Paichongding water dispersible granule and preparation method thereof
CN101880205A
Pesticide composition containing pyrazolecarboxamide insecticide and application of pesticide composition
CN112616845A