CN114403151B - Insecticidal composition containing oxazin and pyrethroid - Google Patents
Insecticidal composition containing oxazin and pyrethroid Download PDFInfo
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- CN114403151B CN114403151B CN202210131963.XA CN202210131963A CN114403151B CN 114403151 B CN114403151 B CN 114403151B CN 202210131963 A CN202210131963 A CN 202210131963A CN 114403151 B CN114403151 B CN 114403151B
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- pyrethroid
- oxazine
- amide
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- insecticidal composition
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- 239000002728 pyrethroid Substances 0.000 title claims abstract description 35
- 230000000749 insecticidal effect Effects 0.000 title claims abstract description 33
- BCHZICNRHXRCHY-UHFFFAOYSA-N 2h-oxazine Chemical compound N1OC=CC=C1 BCHZICNRHXRCHY-UHFFFAOYSA-N 0.000 title description 10
- 239000004480 active ingredient Substances 0.000 claims abstract description 17
- ADRRIUGXSOGPPW-UHFFFAOYSA-N 2h-oxazine-3-carboxamide Chemical compound NC(=O)C1=CC=CON1 ADRRIUGXSOGPPW-UHFFFAOYSA-N 0.000 claims description 43
- 241000254127 Bemisia tabaci Species 0.000 claims description 35
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- 229960002483 decamethrin Drugs 0.000 claims description 16
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- 239000002518 antifoaming agent Substances 0.000 description 2
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- ZUOUZKKEUPVFJK-UHFFFAOYSA-N diphenyl Chemical compound C1=CC=CC=C1C1=CC=CC=C1 ZUOUZKKEUPVFJK-UHFFFAOYSA-N 0.000 description 2
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- 229920001817 Agar Polymers 0.000 description 1
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- 241001674044 Blattodea Species 0.000 description 1
- 241000426497 Chilo suppressalis Species 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- 241000189565 Frankliniella Species 0.000 description 1
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- 241000594031 Liriomyza sativae Species 0.000 description 1
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- 240000001307 Myosotis scorpioides Species 0.000 description 1
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- 206010033799 Paralysis Diseases 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 241000500437 Plutella xylostella Species 0.000 description 1
- 240000003768 Solanum lycopersicum Species 0.000 description 1
- 208000005392 Spasm Diseases 0.000 description 1
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- 240000008042 Zea mays Species 0.000 description 1
- 235000005824 Zea mays ssp. parviglumis Nutrition 0.000 description 1
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- 230000002528 anti-freeze Effects 0.000 description 1
- 230000000845 anti-microbial effect Effects 0.000 description 1
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- 150000004657 carbamic acid derivatives Chemical class 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- CWFOCCVIPCEQCK-UHFFFAOYSA-N chlorfenapyr Chemical compound BrC1=C(C(F)(F)F)N(COCC)C(C=2C=CC(Cl)=CC=2)=C1C#N CWFOCCVIPCEQCK-UHFFFAOYSA-N 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 235000005822 corn Nutrition 0.000 description 1
- 239000006184 cosolvent Substances 0.000 description 1
- 238000007405 data analysis Methods 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
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- 244000144972 livestock Species 0.000 description 1
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- 239000003090 pesticide formulation Substances 0.000 description 1
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- WPALTCMYPARVNV-UHFFFAOYSA-N tolfenpyrad Chemical compound CCC1=NN(C)C(C(=O)NCC=2C=CC(OC=3C=CC(C)=CC=3)=CC=2)=C1Cl WPALTCMYPARVNV-UHFFFAOYSA-N 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
- A01N43/48—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with two nitrogen atoms as the only ring hetero atoms
- A01N43/58—1,2-Diazines; Hydrogenated 1,2-diazines
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N53/00—Biocides, pest repellants or attractants, or plant growth regulators containing cyclopropane carboxylic acids or derivatives thereof
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/30—Against vector-borne diseases, e.g. mosquito-borne, fly-borne, tick-borne or waterborne diseases whose impact is exacerbated by climate change
Abstract
The invention belongs to the field of pesticide, and in particular relates to an insecticidal composition containing oxazin-tebufenozide and pyrethroid, wherein the active ingredients of the insecticidal composition consist of oxazin-tebufenozide and pyrethroid, and the mass ratio of the oxazin-tebufenozide to the pyrethroid is 20:1-1:20; the insecticidal composition is used for controlling crop pests; the insecticidal composition has remarkable synergistic effect, can effectively reduce the dosage of active ingredients, and slows down the generation of drug resistance of pests.
Description
Technical Field
The invention belongs to the field of pesticide, and provides an insecticidal composition containing oxazin and pyrethroid and application thereof.
Background
The oxazine amide is a pyrazole amide compound, and the English common name is as follows: dimropyridaz; trade name: axalon TM The method comprises the steps of carrying out a first treatment on the surface of the IUPAC name: 1- [ (1 RS) -1, 2-dimethylpropyl]-N-ethyl-5-methyl-N-pyridazin-4-yl-1H-pyrazole-4-carboxamide; CAS accession number: 1403615-77-9; the molecular formula: C16H23N5O; the structural formula is as follows:
the product of the oxazine amide has excellent performance and better systemic conductivity. The insecticidal composition is mainly used for controlling pests such as lepidoptera (such as chilo suppressalis, asparagus caterpillar, plutella xylostella, spodoptera frugiperda and the like), coleoptera (such as beetles, corn root beetles, potato leaf beetles, yellow leaf beetles and the like), diptera (such as flies, mosquitoes, vegetable leaf miner and the like), hemiptera (such as aphids, plant hoppers, psyllids, whiteflies and the like), thysanoptera (such as thrips, frankliniella, palmi thrips, thrips and the like), isoptera (such as termites and the like), cockroaches, ants and the like, and is particularly effective on sucking mouthparts such as aphids, whiteflies, psyllids and the like.
Pyrethroids are broad-spectrum pesticides capable of preventing and controlling various pests, and the insecticidal toxicity of the pyrethroids is improved by 10 to 100 times compared with that of the prior-generation pesticides such as organic chlorine, organic phosphorus and carbamates. Pyrethroids have strong contact killing effect on insects, and some varieties have stomach toxicity or fumigation effect. The action mechanism is to disturb the normal physiology of insect nerve, so that the insect nerve dies from excitation, spasm to paralysis. The pyrethroid has small dosage and low use concentration, so the pyrethroid is safer to people and livestock and has little pollution to the environment. The disadvantage is mainly that long-term repeated use also leads to drug resistance of pests.
The long-term use of single insecticidal chemical components can easily lead to the improvement of the drug resistance of pests, and the dosage of the insecticide is continuously improved; in order to slow down the generation of drug resistance of pests, except for developing new pesticide varieties, the domestic pesticide company generally adopts a pesticide compounding mode at present, and no related report of combined use of the oxazamate and the pyrethroid exists in the prior art.
Disclosure of Invention
The invention aims to solve the technical problems of slowing down the generation of drug resistance of pests and reducing the dosage of active ingredients, and provides an insecticidal composition with remarkable synergistic effect, which comprises the following specific technical scheme:
the insecticidal composition comprises the active ingredients of the oxazin-tebufenozide and the pyrethroid, wherein the mass ratio of the oxazin-tebufenozide to the pyrethroid is 20:1-1:20; the pyrethroid is bifenthrin, deltamethrin or cyhalothrin. The mass ratio of the preferred oxazine amide to the pyrethroid is 10:1-1:10.
Further preferably, the mass ratio of the oxazine amide to the bifenthrin is 10:1-5:1, 1:10; the mass ratio of the oxazine amide to the deltamethrin is 1:5-1:10; the mass ratio of the oxazine amide to the cyhalothrin is 1:5-1:20.
The insecticidal composition comprises agricultural auxiliary ingredients; the weight percentage of the active ingredients is 1-50%; the preferred percentage of active ingredient is 1-30%. The pesticide preparation is wettable powder, water dispersible granules, emulsifiable concentrate, aqueous emulsion, microemulsion, suspending agent and granules.
The specific embodiments of the pesticide formulation prepared from the pesticide composition of the invention are as follows:
the insecticidal composition is an emulsifiable concentrate preparation, and comprises the following components in percentage by mass: 1-30% of oxazine amide; 1-30% of pyrethroid; 5-30% of an emulsifying agent; the balance of solvent. The specific production steps of the emulsifiable concentrate preparation are that the effective components of the oxazine amide and the pyrethroid are added into a solvent to be completely dissolved, then an emulsifier is added into the solvent to be uniformly stirred to form uniform and transparent oily liquid, and the oily liquid is filled, so that the emulsifiable concentrate preparation of the composition is prepared.
The insecticidal composition is a suspending agent, and comprises the following components in percentage by mass: 1-30% of oxazine amide; 1-30% of pyrethroid; 1-10% of dispersing agent; 1-10% of wetting agent; 1-5% of an antifreezing agent; 0.1-2% of thickener; 0.1-0.8% of defoaming agent; 0-10% of penetration enhancer; 0.1-5% of pH regulator; water, balance. The specific production steps of the suspending agent are that other auxiliary agents are firstly mixed, the mixture is evenly sheared and mixed at high speed, the active ingredients of the oxazamate and the pyrethroid are added, and the suspending agent preparation of the composition of the invention can be prepared after grinding balls in a ball grinding machine for 2-3 hours, and the particle diameters are below 5 mm.
The insecticidal composition is wettable powder, and the mass percentage of the components is 1-30% of the oxazine amide; 1-30% of pyrethroid; 3-10% of dispersing agent; 1-5% of a wetting agent; and (3) filling and the balance. The specific production steps of the wettable powder are as follows: the composition of the invention can be prepared by mixing the effective component of the oxazine and the pyrethroid, the dispersing agent, the wetting agent and the filler according to the formula, uniformly stirring the mixture in a stirring kettle, and uniformly mixing the mixture after passing through a jet mill.
The insecticidal composition is water dispersible granules, and comprises the following components in percentage by mass: 1-30% of oxazine amide; 1-30% of pyrethroid; 3-10% of dispersing agent; 1-10% of a wetting agent; 1-5% of disintegrating agent; 1-5% of a binder; and (3) filling and the balance. The specific production steps of the water dispersible granule are as follows: the water dispersible granule of the composition is prepared by uniformly mixing the active ingredient oxazine and tolfenpyrad with the pyrethroid, the dispersing agent, the wetting agent, the disintegrating agent and the filler according to the formula, crushing the mixture by an ultrafine jet mill, kneading the crushed mixture, adding the kneaded mixture into a fluidized bed granulation dryer for granulation, drying and screening, and then sampling and analyzing the mixture.
The insecticidal composition is an aqueous emulsion and comprises the following components in percentage by mass: 1-30% of oxazine amide; 1-30% of pyrethroid; 3-30% of an emulsifying agent; 5-15% of a solvent; 2-15% of a stabilizer; 1-5% of an antifreezing agent; 0.1-8% of defoaming agent; 0.2-2% of thickener; water, balance. The specific production steps of the aqueous emulsion are as follows: firstly, adding the oxazine amide, the pyrethroid, the solvent, the emulsifier and the cosolvent together to dissolve the oxazine amide into a uniform oil phase; mixing part of water, antifreeze, antimicrobial and other pesticide auxiliary agents together to form a uniform water phase; adding the oil phase into the water phase while stirring at high speed in a reaction kettle, slowly adding water until reaching a phase inversion point, starting a shearing machine to conduct high-speed shearing, adding the rest water, and shearing for about half an hour to form an oil-in-water type aqueous emulsion, thus obtaining the aqueous emulsion of the composition.
Wherein the auxiliary materials are common components in the field of pesticide preparations.
The use of the insecticidal composition for controlling crop pests. The crops comprise fruit trees, vegetables, soybeans, cotton, grains and potatoes. The pests include lepidoptera, coleoptera, diptera, hemiptera, thysanoptera pests. Preferably aphids, whiteflies, red spiders, scale insects.
Compared with the prior art, the invention has the beneficial effects that:
the mixture of the oxazamate and the bifenthrin has synergistic effect on bemisia tabaci when the mass ratio is 10:1-5:1 and 1:10, and has excellent insecticidal effect; the mixture of the oxazine amide and the deltamethrin has synergistic effect on bemisia tabaci when the mass ratio is 1:5-1:10, and has excellent insecticidal effect; the mixture of the oxazine and the cyhalothrin has synergistic effect on bemisia tabaci when the mass ratio is 1:5-1:20, and has excellent insecticidal effect; can effectively reduce the dosage of the monomer active ingredients and slow down the generation of drug resistance of pests.
The insecticidal activity of the insecticide can be improved by mixing the oxazamate and the pyrethroid in a proper proportion, and the influence of the mixing proportion in the mixture on the insecticidal activity of the mixture is higher than that of the insecticide active ingredient.
The compound preparation of the oxazamate and the pyrethroid has excellent control effect on cabbage bemisia tabaci; if the dosage of the medicament 1-3 is 1.5 g/mu, the control effect on cabbage bemisia tabaci after 14d is more than 87%; the prevention and treatment of 21d after the medicine still reaches more than 82 percent.
Detailed Description
The following is a detailed description of the present invention by way of examples. In the present invention, the following examples are provided for better illustration of the present invention and are not intended to limit the scope of the present invention. Materials, reagents and the like used in the examples described below are commercially available unless otherwise specified.
Example 1: indoor bioassay of composite chlorfenapyr and pyrethroid on bemisia tabaci
Test insect source: bemisia tabaci.
Test agent: oxazine amide; bifenthrin; deltamethrin; cyhalothrin;
the measuring method comprises the following steps: the toxicity effect of the tested insecticide on vegetable bemisia tabaci is measured by an agar moisturizing leaf dipping method. Controls were set up with 5 concentrations of each agent, each concentration being repeated 4 times. A round leaf disc with the diameter of 33mm is arranged on clean tomato leaves by using a centrifugal bottle cap, the round leaf disc is respectively immersed in each liquid medicine concentration for about 10s, the round leaf disc is taken out and naturally dried at room temperature, and the leaf backs are flatly paved on the surface of a gel layer in the centrifugal tube cap upwards, and when necessary, the periphery of the leaf disc is lightly pressed by using tweezers, so that the leaf disc is tightly combined with the surface of the gel layer. In the test, the open end of the straight pipe is lightly pressed downwards on the back of the plant blade, the front of the blade is lightly flicked by hands to promote the adult bemisia tabaci to fly into the pipe, each pipe is filled with 35-40 heads of insects, the centrifugal pipe cover with the leaf disc is buckled on the open end of the straight pipe with insects, the covered black cloth end faces downwards, and the straight pipe is placed in an illumination incubator to be raised (25+/-1) DEG C, and L: D=16:8. After the treatment, the results were checked for 48 hours, the adult with the appendage immobilized was marked as dead insect by lightly touching the insect body with a zero-number writing brush.
Data analysis: virulence regression equations, LC50 values, were calculated using splsl 6.0 biometric software.
Combined action analysis: the sun cloud Pei method is adopted: wherein CTC < 80 is antagonism, CTC 80-120 is addition, CTC 120 < is synergy. The specific calculation method is as follows:
mix observed virulence index (ATI) = (standard dose EC 50/mixed dose EC 50) ×100;
the mixed agent Theoretical Toxicity Index (TTI) =a agent toxicity index×the percentage of the a agent in the mixed agent+b agent toxicity index×the percentage of the B agent in the mixed agent;
co-toxicity coefficient (CTC) = (mix measured toxicity index (ATI)/mix Theoretical Toxicity Index (TTI)) ×100.
Test results:
LC50 values and combined toxicity analysis of the oxazamide, biphenyl and their blends against bemisia tabaci are shown in table 1. Among the monomer compounds, the pesticide oxazine amide has better killing effect on bemisia tabaci, and the LC50 value of the oxazine amide is 14.97 mug/ml. The mixed agent of the oxazine amide and the bifenthrin with different proportions shows a certain insecticidal activity on bemisia tabaci; wherein the CTC values of the mixture of the oxazine amide and the bifenthrin are 120.5, 136.4 and 134.0 respectively when the mass ratio of the mixture is 10:1, 5:1 and 1:10; the synergistic effect is shown; CTC values of other ratios are equal to or more than 80 and equal to or less than 120 and are added; the combination of the oxazamide and the bifenthrin has no antagonism on bemisia tabaci. The mixed agent of the oxazine and the bifenthrin has synergistic effect on bemisia tabaci when the mass ratio of the mixed agent is 10:1-5:1 and 1:10, has excellent insecticidal effect, can effectively reduce the dosage of the monomer active ingredients, and slows down the generation of drug resistance of the bemisia tabaci.
LC50 values of the oxazamide, the deltamethrin and the mixture thereof on bemisia tabaci and their combined toxicity analysis are shown in table 2. Among the monomer compounds, the pesticide oxazine amide has better killing effect on bemisia tabaci, and the LC50 value of the oxazine amide is 14.97 mug/ml. The mixed agent of the oxazine amide and the deltamethrin with different proportions shows a certain insecticidal activity on bemisia tabaci; wherein the CTC value of the mixture of the oxazine amide and the deltamethrin is 143.3 and 125.9 respectively when the mass ratio of the mixture is 1:5 and 1:10; the synergistic effect is shown; CTC values of other ratios are equal to or more than 80 and equal to or less than 120 and are added; the combination of the oxazamate and the deltamethrin has no antagonism on bemisia tabaci. The mixed agent of the oxazine and the deltamethrin has synergistic effect on bemisia tabaci when the mass ratio of the oxazine to the deltamethrin is 1:5-1:10, has excellent insecticidal effect, can effectively reduce the dosage of the monomer active ingredients, and slows down the generation of drug resistance of the bemisia tabaci.
LC50 values of the oxazamide, kungfu and the mixture thereof on bemisia tabaci and the combined toxicity analysis thereof are shown in table 2. Among the monomer compounds, the pesticide oxazine amide has better killing effect on bemisia tabaci, and the LC50 value of the oxazine amide is 14.97 mug/ml. The oxazine amide and the kungfu admixture with different proportions show a certain insecticidal activity on bemisia tabaci; wherein the CTC values of the mixture of the oxazine amide and the cyhalothrin are 139.2, 124.4 and 125.0 when the mass ratio of the mixture is 1:5, 1:10 and 1:20 respectively; the synergistic effect is shown; CTC values of other ratios are equal to or more than 80 and equal to or less than 120 and are added; the combination of the oxazamate and the cyhalothrin has no antagonism on bemisia tabaci. The mixed agent of the oxazine and the cyhalothrin has synergistic effect on bemisia tabaci when the mass ratio of the mixed agent is 1:5-1:20, has excellent insecticidal effect, can effectively reduce the dosage of the monomer active ingredient, and slows down the generation of drug resistance of the bemisia tabaci.
The experimental results show that: the compound of the oxazine amide and the pyrethroid shows higher insecticidal activity to bemisia tabaci and shows a synergistic effect; and the mixing proportion selects the pesticide activity of the mixture to have higher influence than the pesticide active ingredient.
Table 1: indoor combined action determination of oxazamate and bifenthrin compounded bemisia tabaci
Table 2: indoor combined action determination of oxazine amide and deltamethrin compounded bemisia tabaci
Table 3: indoor combined action determination of oxazamate and cyhalothrin compounded bemisia tabaci
Example 2: oxazine amide and pyrethroid compound pair Gan Lanyan whitefly field efficacy test
Test agent:
medicament 1:5.5% of oxazine amide bifenthrin emulsifiable concentrate: comprises the following components in percentage by weight:
0.5% of oxazine amide, 5% of bifenthrin, 4% of agricultural emulsion 1601, 600% of agricultural emulsion 4%, 3% of fatty acid polyoxyethylene ether and 100% of vegetable oil.
Medicament 2:4.4% of oxazine amide deltamethrin emulsifiable concentrate: comprises the following components in percentage by weight:
0.4% of oxazine amide, 4% of deltamethrin, 4% of agricultural emulsion 1601#4%, 600#5% of agricultural emulsion, 2% of fatty acid polyoxyethylene ether and 100% of vegetable oil.
Medicament 3:3.3% of oxazin-tefluthrin emulsifiable concentrate: comprises the following components in percentage by weight:
0.3% of oxazine amide, 3% of cyhalothrin, 1601#3% of agricultural emulsion, 600#4% of agricultural emulsion, 3% of fatty acid polyoxyethylene ether and 100% of vegetable oil.
Agent 4:12% of a oxazin-fenvalerate suspending agent: comprises the following components in percentage by weight:
2% of oxazine amide, 10% of bifenthrin, 5% of wetting penetrating agent F, 5% of calcium lignosulfonate, 3% of naphthalene sulfonic acid formaldehyde condensate sodium salt, 2% of xanthan gum, 1.5% of organosilicon, 3% of glycol and 100% of water.
Medicament 5:18% of a oxazin-deltamethrin suspending agent: comprises the following components in percentage by weight:
3% of oxazine amide, 15% of deltamethrin, 6% of wetting penetrating agent F, 4% of calcium lignosulfonate, 5% of naphthalene sulfonic acid formaldehyde condensate sodium salt, 3% of xanthan gum, 2% of organosilicon, 3% of glycol and 100% of water.
Agent 6:24% of oxazin-tefluthrin suspending agent: comprises the following components in percentage by weight:
4% of oxazine amide, 20% of bifenthrin, 8% of wetting penetrating agent F, 6% of calcium lignosulfonate, 4% of naphthalene sulfonic acid formaldehyde condensate sodium salt, 3% of xanthan gum, 3% of organic silicon, 4% of ethylene glycol and 100% of water.
The test method comprises the following steps: 4 cells are arranged in each treatment, 45m < 2 > is arranged in each cell, the cells are randomly distributed, and clear water treatment is adopted for comparison. And adopting a fixed-point fixed-plant investigation method to investigate 10 cabbages in each cell at fixed points. The number of the adult bemisia tabaci is investigated before pesticide application, the total number of living insects on plants is investigated 7d, 14d and 21d after pesticide application, and the control effect of each pesticide treatment area is calculated;
the calculation formula is as follows: control effect (%) = [1- (number of live insects before drug treatment in the blank control area×number of live insects after drug treatment in the drug treatment area)/(number of live insects after drug treatment in the blank control area×number of live insects before drug treatment area) ]×100.
Test results: the results of the field efficacy test of the compound of the oxazamate and the pyrethroid on Gan Lanyan whiteflies are shown in Table 3. The compound preparation of the oxazamate and the pyrethroid has excellent control effect on cabbage bemisia tabaci; if the dosage of the medicament 1-3 is 1.5 g/mu, the control effect on cabbage bemisia tabaci after 14d is more than 87%; the prevention and treatment of 21d after the medicine still reaches more than 82 percent.
Table 4: oxazine amide and pyrethroid compound pair Gan Lanyan whitefly field efficacy test
Variations and modifications to the above would be obvious to those of ordinary skill in the art to which the invention pertains, based on the foregoing disclosure and teachings. Therefore, the invention is not limited to the specific embodiments disclosed and described above, but some modifications and changes of the invention should be also included in the scope of the claims of the invention. In addition, although specific terms are used in the present specification, these terms are for convenience of description only and do not limit the present invention in any way.
Claims (4)
1. The application of the insecticidal composition containing the oxazine amide and the pyrethroid in preventing and controlling the bemisia tabaci is characterized in that the active ingredient consists of the oxazine amide and the pyrethroid, wherein the pyrethroid is deltamethrin or cyhalothrin, and the mass ratio of the oxazine amide to the pyrethroid is 1:5-1:10.
2. Use according to claim 1, characterized in that it comprises an agriculturally acceptable adjuvant ingredient; the weight percentage of the active ingredients is 1-50%.
3. Use according to claim 2, characterized in that the percentage of active ingredient is 1-30%.
4. The use according to claim 2, wherein the formulation of the insecticidal composition is a wettable powder, a water dispersible granule, an emulsifiable concentrate, an aqueous emulsion, a microemulsion, a suspension or a granule.
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| AU2016218096A1 (en) * | 2015-02-11 | 2017-08-03 | Basf Se | Pesticidal mixture comprising a pyrazole compound, an insecticide and a fungicide |
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