CN111903700A - Insecticidal composition containing cyclic bromofenoxanil and diafenthiuron - Google Patents

Abstract

The invention relates to an insecticidal composition containing cyclic bromofenozide and diafenthiuron, wherein the weight ratio of two active ingredients is 1: 80-80: 1, the total weight content of the active ingredients in the composition is 1% -90%, and the balance is auxiliary ingredients which are allowed to use and can be accepted in pesticides, so that the insecticidal composition can be prepared into a suspending agent, a microemulsion, missible oil, wettable powder and water dispersible granules. The composition has obvious synergistic effect, can reduce the use cost of pesticides, and is environment-friendly and safe.

Description

Insecticidal composition containing cyclic bromofenoxanil and diafenthiuron

Technical Field

The invention relates to the field of pesticide compositions, and in particular relates to an insecticidal composition containing cyclic bromoxynil and diafenthiuron.

Background

Chemical name of cyclic bromodiamide (Cyclaniliprole): 3-bromo-N- { 2-bromo-4-chloro-6- { [ (1-cyclopropylethyl) amine ] carbonyl } phenyl } -1- (3-chloro-2-pyridyl) -1H-pyrazole-5-carboxamide, having the formula:

the cyclic bromantranilide is an o-formamidobenzamide pesticide and belongs to a bisamide compound, but the cyclic bromantranilide does not act on a ryanodine receptor but acts on a ryanodine receptor variant. The cyclic bromoantraniliprole has a wide insecticidal spectrum, can be used for crops such as fruit trees, vegetables, potatoes, tea trees, soybeans, cotton and the like, and can be used for controlling lepidoptera, coleopteran, thysanoptera, diptera and homoptera pests and the like.

Diafenthiuron (Diafenthiuron) chemical name: 1-tert-butyl-3- (2, 6-diisopropyl-4-phenoxyphenyl) thiourea, which has the structural formula:

diafenthiuron is converted into corresponding carbodiimide by light or in vivo, and is a mitochondrial respiration inhibitor; the larva, nymph and imago are killed mainly by contact killing and stomach poisoning, and the ovicidal effect is also achieved to a certain extent; can be used for cotton, various field crops, fruit trees, ornamental plants and vegetables, and effectively prevent and control phytophagous mites, whiteflies, aphids and leafhopper pests; also for controlling some leaf-eating pests on rape (diamond back moth), soybean (soybean looper) and cotton (cotton leaf looper); it is safe to all imagoes of beneficial insects, and also safe to predatory mites and spiders.

In the actual process of agricultural production, the use of chemical agents is the most effective means for controlling plant pests, but the most easily generated problem by chemical control of pests is the generation of pest resistance. The practical application proves that the single pesticide dose has gradually reduced pest control effect, the compounding of some pesticide active ingredients can achieve the effect of improving the pesticide effect, and the generation of the drug resistance of pests is delayed. On the basis of indoor screening and field tests, the inventor finds that the compound of the cyromaniliprole and the diafenthiuron has good activity on both tea lesser leafhoppers and peach fruit borers.

No report is currently made about a compounded insecticidal composition of cyromaniliprole and diafenthiuron and its application.

Disclosure of Invention

The invention aims to provide a compound composition, and the compound composition is prepared into an agricultural compound insecticidal composition with small resistance risk, good insecticidal activity, long drug effect, low cost and small environmental pollution.

The technical scheme of the invention is as follows: the active ingredients of the agricultural compound insecticidal composition contain cyclic bromantraniliprole and diafenthiuron.

The weight ratio of the active ingredients of the insecticidal composition, namely the cyclic bromodiamide to the diafenthiuron is 1: 80-80: 1;

further, the preferable weight ratio of the active ingredients, namely the cyclic bromoxydiamide and the diafenthiuron in the composition is 1: 50-50: 1;

further, the preferable weight ratio of the active ingredients, namely the cyclic bromoxydiamide and the diafenthiuron in the composition is 1: 20-20: 1;

further, the preferable weight ratio of the active ingredients, namely the cyclic bromoxydiamide and the diafenthiuron in the composition is 1: 5-5: 1;

the sum of the contents of the active ingredients of the insecticidal composition, namely the compound active ingredients of the cyclic bromoxydiamide and the diafenthiuron is 1 to 90 percent of the total weight of the composition;

furthermore, the sum of the contents of the active ingredients of the composition, namely the compound active ingredients of the cyclic bromoxydiamide and the diafenthiuron is 10 to 50 percent of the total weight of the insecticidal composition.

The composition of the present invention may be diluted or directly used by a user before use, and its formulation may be prepared by a general processing method known to those skilled in the art.

The insecticidal composition preparation is prepared into any one of formulations allowed in the field of pesticides by active ingredients and pesticide auxiliary ingredients;

further, the auxiliary components of the pesticide preparation comprise a carrier and an auxiliary agent;

further, the carrier is any one, two or three of water, a solvent or a filler, and the water is preferably deionized water;

further, the solvent is selected from one or a mixture of more of N, N-dimethylformamide, cyclohexanone, toluene, xylene, dimethyl sulfoxide, methanol, ethanol, trimethylcyclohexanone, N-octylpyrrolidone, ethanolamine, triethanolamine, isopropylamine, N-methylpyrrolidone, propanol, butanol, ethylene glycol, diethylene glycol, ethylene glycol methyl ether, butyl ether, ethanolamine, isopropylamine, ethyl acetate or acetonitrile;

further, the filler is selected from one or a mixture of more of kaolin, diatomite, bentonite, attapulgite, white carbon black, starch or light calcium carbonate;

furthermore, the auxiliary agent at least comprises a surfactant, and other functional auxiliary agents such as an antifreezing agent, a thickening agent, a stabilizing agent, a disintegrating agent, a defoaming agent and the like can be added according to different use occasions and requirements;

further, the surfactant is selected from one or more of an emulsifier, a dispersant, a wetting agent or a penetrant;

further, the other functional auxiliary agents are selected from one or more of an antifreezing agent, a thickening agent, a stabilizing agent, a disintegrating agent or a defoaming agent;

further, the emulsifier is selected from one or more of agricultural milk 500# (calcium alkyl benzene sulfonate), OP series phosphate ester (nonylphenol polyoxyethylene ether phosphate ester), 600# phosphate ester (phenylphenol polyoxyethylene ether phosphate ester), styrene polyoxyethylene ether ammonium sulfate salt, magnesium salt of alkyl diphenyl ether disulfonate, triethanolamine salt, agricultural milk 400# (benzyldimethylphenol polyoxyethylene ether), agricultural milk 700# (alkylphenol formaldehyde resin polyoxyethylene ether), Ningru 36# (phenethylphenol formaldehyde resin polyoxyethylene ether), agricultural milk 1600# (phenethylphenol polyoxyethylene polyoxypropylene ether), ethylene oxide-propylene oxide block copolymer, OP series (nonylphenol polyoxyethylene ether), BY series (castor oil polyoxyethylene ether), agricultural dehydrated milk 33# (alkylaryl polyoxyethylene polyoxypropylene ether), span series (sorbitan monostearate), Tween series (sorbitan fatty acid ester polyoxyethylene ether) or AEO series (fatty alcohol polyoxyethylene ether) A mixture of seed constituents;

further, the dispersing agent is selected from one or a mixture of a plurality of polycarboxylate, lignosulfonate, alkylphenol polyoxyethylene formaldehyde condensate sulfate, calcium alkylbenzene sulfonate, naphthalene sulfonic acid formaldehyde condensate sodium salt, alkylphenol polyoxyethylene, fatty amine polyoxyethylene, fatty acid polyoxyethylene or glycerol fatty acid ester polyoxyethylene;

further, the wetting agent is selected from one or a mixture of more of sodium dodecyl sulfate, sodium dodecyl benzene sulfonate, nekal BX, wetting penetrant F, Chinese honeylocust fruit powder, silkworm excrement or soapberry powder;

further, the penetrating agent is selected from a mixture consisting of one or more of penetrating agent JFC (fatty alcohol-polyoxyethylene ether), penetrating agent T (diisooctyl maleate sulfonate), azone or organic silicon;

further, the antifreezing agent is a mixture consisting of one or more of ethylene glycol, propylene glycol, glycerol or urea;

further, the thickening agent is selected from one or more of xanthan gum, polyvinyl alcohol, bentonite, carboxymethyl cellulose or magnesium aluminum silicate;

further, the stabilizer is selected from one or more of epoxidized soybean oil, epichlorohydrin, BHT, ethyl acetate and triphenyl phosphate;

further, the disintegrating agent is selected from one or more of bentonite, urea, ammonium sulfate, aluminum chloride, low-substituted hydroxypropyl cellulose, lactose, citric acid, succinic acid or sodium bicarbonate;

further, the defoaming agent is selected from one or a mixture of more of silicone oil, silicone compounds, C10-C20 saturated fatty acid compounds or C8-C10 fatty alcohol compounds;

all of the above are commercially available.

The compositions of the present invention may be formulated into pesticidally acceptable dosage forms, including solid, liquid, seed treatment, other formulations, according to methods well known to those skilled in the art;

further, the solid preparation is powder, dispersible tablets, granules, soluble powder, soluble granules, soluble tablets, milk powder, milk granules, water dispersible granules, wettable powder, micro-capsule granules, powder, macro-granules and water dispersible tablets;

further, the liquid preparation is microcapsule suspending agent, dispersible agent, missible oil, emulsion granules, oil emulsion, emulsion powder, aqueous emulsion, microemulsion, dispersible oil suspending agent, oil dispersion powder, suspending agent, suspoemulsion, soluble solution and ultra-low volume liquid;

further, the seed treatment preparation is a suspended seed coating agent, a seed treatment dry powder agent, a seed treatment dispersible powder agent, a seed treatment suspending agent and a seed treatment liquid agent;

further, the other preparations are bait, concentrated bait, gas preparation, aerosol, smoke agent;

furthermore, the preparation formulation is preferably a suspending agent, a microemulsion, missible oil, wettable powder and water dispersible granules;

further, the composition is prepared into a suspending agent, and the components and the content of the suspending agent are preferably as follows: 0.1-80% of cyclic bromodiamide, 0.1-80% of diafenthiuron, 2-10% of dispersant, 2-10% of wetting agent, 0.01-2% of defoaming agent, 0-2% of thickening agent, 0-8% of antifreeze agent and the balance of deionized water;

further, the composition is prepared into a microemulsion, and the components and the content of the microemulsion are preferably as follows: 0.1-80% of cyclic bromodiamide, 0.1-80% of diafenthiuron, 10-25% of solvent, 5-15% of emulsifier and the balance of deionized water;

further, the composition is prepared into missible oil, and the missible oil preferably comprises the following components in percentage by weight: 0.1-80% of cyclic bromoantraniliprole, 0.1-80% of diafenthiuron, 1-10% of emulsifier and the balance of solvent;

further, the composition is prepared into wettable powder, and the components and the content of the wettable powder are preferably as follows: 0.1-80% of cyclic bromodiamide, 0.1-80% of diafenthiuron, 2-10% of dispersant, 2-10% of wetting agent and the balance of filler;

further, the composition is prepared into water dispersible granules, and the components and the content of the water dispersible granules are preferably as follows: 0.1-80% of cyclic bromoantraniliprole, 0.1-80% of diafenthiuron, 3-12% of dispersant, 1-8% of wetting agent, 1-10% of disintegrating agent and the balance of filler.

The invention has the following advantages: 1) the synergistic effect is obvious, the components are not simply superposed in activity, and the drug effect is greatly improved; 2) the prevention and treatment efficacy is outstanding, the duration is long, and the resistance risk is small; 3) the field dosage of the active ingredients is reduced, the production and use cost is reduced, and the pesticide residue and the environmental pollution are reduced; 4) the insecticidal composition consists of active ingredients with different action mechanisms, and the action sites are increased, thereby being beneficial to overcoming and delaying the generation of drug resistance of pests.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more concise and clear, the present invention is described with the following specific embodiments, but the present invention is by no means limited to these embodiments. The following described examples are only preferred embodiments of the present invention, which can be used to describe the present invention and should not be construed as limiting the scope of the present invention. It should be understood that any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Preparation of the preparation

Example 1: 30% of cyclobromantraniliprole-diafenthiuron suspension

The formula is as follows: 5% of cyclic bromodiamide, 25% of diafenthiuron, 4% of polyoxyethylene polyoxypropylene ether, 1.5% of sodium lignosulfonate, 0.25% of xanthan gum, 1.5% of magnesium aluminum silicate, 1% of sodium benzoate, 3% of propylene glycol, 0.5% of silicone oil and the balance of deionized water;

the preparation method comprises the following steps: according to the formula, water, a dispersing agent and a wetting agent are uniformly mixed, an antifreeze agent and a thickening agent are sequentially added under the stirring state, the materials are uniformly sheared and mixed at a high speed, then, the cyclic bromofenomide and the diafenthiuron are added, the materials are continuously sheared and uniformly mixed, then, the materials enter a horizontal sand mill for grinding to ensure that the particle size of the materials is below 5 mu m, and then, a defoaming agent is added, and the materials are sheared uniformly to obtain the suspending agent.

Example 2: microemulsion of 7% cyclic bromofenoxanide and diafenthiuron

The formula is as follows: 2% of cyclic bromodiamide, 5% of diafenthiuron, 3% of sodium dodecyl benzene sulfonate, 7% of phenethyl phenol polyoxyethylene polyoxypropylene ether, 3% of N-methyl pyrrolidone, 3.5% of sodium lignin sulfonate, 1.3% of polyvinyl alcohol, 1.8% of dicyclohexyl methane diisocyanate and deionized water for balancing;

the preparation method comprises the following steps: according to the formula proportion of the embodiment, the active ingredients of the cyromonamide and the diafenthiuron are completely dissolved by the solvent and the cosolvent, then other auxiliary agents are added and mixed evenly, finally water is added and the microemulsion is prepared after full stirring.

Example 3: 15% cyclobromoantraniliprole butyl ether urea missible oil

The formula is as follows: 6% of cyclic bromodiamide, 9% of diafenthiuron, 5% of magnesium alkyldiphenyl ether disulfonate, 8% of triethanolamine salt, 10% of N-dimethylformamide, 5% of cyclohexanone and the balance of soybean oil;

the preparation method comprises the following steps: adding the active ingredients of the cyclic bromofenozide and the diafenthiuron into a carrier according to the proportion of the formula of the embodiment, adding the surfactant and other functional auxiliaries, and uniformly stirring and mixing in a stirring and mixing kettle to obtain the missible oil disclosed by the invention.

Example 4: 40% cyromaniliprole butyl ether urea wettable powder

The formula is as follows: 20% of cyclic bromodiamide, 20% of diafenthiuron, 3% of sodium dodecyl sulfate, 6% of sodium lignosulfonate, 5% of diatomite, 3% of white carbon black and the balance of kaolin;

the preparation method comprises the following steps: according to the formula, the cyclic bromodiamide, the diafenthiuron, the dispersant, the wetting agent and the filler are mixed, stirred uniformly in a stirring kettle, crushed by a jet mill and mixed uniformly to obtain the wettable powder.

Example 5: 25% of cyromaniliprole butyl ether urea water dispersible granule

The formula is as follows: 10% of cyclic bromodiamide, 15% of diafenthiuron, 5% of sodium lignosulfonate, 2.5% of sodium dodecyl sulfate, 5% of urea, 5% of white carbon black and the balance of kaolin;

the preparation method comprises the following steps: according to the formula, diafenthiuron, cyclic bromodiamide, a dispersing agent, a wetting agent, a disintegrating agent and a filler are uniformly mixed, the mixture enters a jet mill for crushing, the crushed material is kneaded, then enters an extrusion granulator for granulation, then enters a fluidized bed dryer for drying, and finally is screened and granulated by a granulator to obtain the water dispersible granule.

Indoor Activity assay

Example 6: indoor activity test of tea tree tea leafhopper by mixing diafenthiuron and cyclic bromoantraniliprole

The purpose of the test is as follows: a30% diafenthiuron and cyromonamid suspension compounded by taking diafenthiuron and cyromonamid as active ingredients is used for determining the indoor toxicity to tea tree leafhoppers by a spraying method. Tests verify whether the combination of the two has a synergistic effect, and an optimal formula is screened, so that scientific basis is provided for registration of the medicament.

Test targets: tea plant tea lesser leafhopper, insect source is collected from tea garden in east harbor district of sunshine city, and is raised indoors by using tea plant tender bud heads.

The culture conditions are as follows: the test is carried out in an artificial intelligence incubator, the temperature is 25 +/-1 ℃, the humidity is 70%, and the illumination is as follows: 14h:10h in darkness and 2000Lux in daytime

The instrument comprises the following steps: electronic balance (sensing quantity is 0.1mg), filter paper, artificial intelligence incubator, glass insect-breeding cover, absorbent cotton, brush pen, beaker and the like.

Test agents: 95% of diafenthiuron technical and 95% of cyclic bromantraniliprole technical.

Preparing liquid medicine and setting dosage: firstly dissolving the diafenthiuron original drug and the cyclobromantraniliprole original drug in analytically pure dimethylformamide to prepare 100g/L mother liquor, and then mixing the diafenthiuron original drug and the cyclobromantraniliprole original drug in a mass ratio of the effective components of 1:5, 1:3, 1:1, 3:1 and 5:1 to prepare mixed mother liquor. The composition was diluted with an aqueous solution containing 0.1% Tween 80 to the following concentrations (unit: mg/L).

The test was repeated: 4 replicates per concentration treatment

The treatment method comprises the following steps: according to the indoor bioassay test criteria (agricultural industry standard NY/T1154.6-2006) of the pesticide, an insect soaking method is adopted, tea tree branches of nymphs are placed in a refrigerator for 5-10min, the tea tree branches with more nymphs fall are taken out when the tea tree branches are inactive, the nymphs and adults of low age are removed, the tea tree branches of the nymphs are immersed in liquid medicines with different concentrations to be tested for 10s, the base parts are moisturized by cotton balls after being dried in the air, the tea tree branches are placed in a straight-barrel-shaped glass insect-raising cover, and the upper parts are fastened by a nylon net. After the treatment, the seeds are placed in an artificial intelligent incubator for breeding.

Investigation time and method: and investigating the death condition of the test insects 2 days after the treatment of the medicament, and recording the number of live insects and the number of dead insects.

Data statistical analysis: based on the results of the investigation, the corrected mortality rate in percent (%) for the test insects was calculated for each treatment concentration according to the following formula.

According to the investigation result, calculating the mortality and the prevention and treatment effect

The LC of each drug was determined by using the logarithmic value of the drug concentration (mg/L) as the independent variable (X) and the probability value of corrected mortality as the dependent variable (Y)₅₀Calculating the Co-toxicity coefficient (CTC)

Evaluation method: CTC <80 indicates that the single agents forming the mixture have antagonism; the CTC is between 80 and 120, which shows that the single agents forming the mixed agent have an addition effect; CTC >120 shows that the single agents composing the mixture have synergistic effect.

Analysis and discussion of results:

TABLE 1 Combined virulence of diafenthiuron and Cyclobromamide combination pairs

The results of the 48-hour treatment with the same dose are shown in Table 1. And establishing a regression equation by taking the logarithmic value of the concentration of the medicament as X and the probability value of the corrected mortality as Y, and calculating the co-toxicity coefficient. The measurement results show that: the diafenthiuron and the cyclic bromdiamide are compounded according to the proportion of 1:5, 1:3, 1:1, 3:1 and 5:1, the co-toxicity coefficients are 110.37, 162.70, 173.68, 188.65 and 206.86 respectively, the highest co-toxicity coefficient of the 5:1 compound is obtained, the synergistic effect is obvious, and the optimum proportion of the compound control of the diafenthiuron and the cyclic bromdiamide is obtained.

The lethal middle concentration and the cotoxicity coefficient of the diafenthiuron and the cyromonamide in five different matching ratios are determined by an insect immersion method. The results show that: the two compounds show a certain addition or synergistic effect, wherein the cotoxicity coefficient of the diafenthiuron and the cyromonamide 5:1(25:5) is the highest and reaches 206.86, and the synergistic effect is most obvious. Therefore, the proportion is the optimal proportion for preventing and controlling the compound of the diafenthiuron and the cyromonamide.

The results are completed in an indoor test, the difference between various indoor environmental conditions and a field is large, and the field drug effect test is recommended to be carried out to further verify the reasonability of the formula and determine the range of the dosage.

Test of field drug effect

Example 7: test of field pesticide effect of 30% diafenthiuron and cyromonamid suspending agent on prevention and control of tea tree leafhoppers

The purpose of the test is as follows: for years, tea plant lesser leafhoppers are mainly controlled by pesticides such as acetamiprid and imidacloprid, and a large amount of single pesticides are used for a long time, so that serious drug resistance is generated, and the control effect is not ideal. The test is developed for verifying the field efficacy test effect of the 30% diafenthiuron and the cyclic bromodiamide mixed pair tea tree, providing a basis for production, popularization and application.

Selection of subjects, crops and varieties: tea lesser leafhopper (Empoasca flavescen), tea tree (zhe nong 113).

Environmental or facility cultivation conditions: the test field has flat vigor and moderate fertility, the soil texture is medium loam, the organic matter content is 2 percent, and the fertilizer and water management and other cultivation conditions of the test field are the same.

Test reagents and dosage: see table 2.

Cell area and repetition: 20m per cell²(ii) a The number of repetitions: 4 times.

The application method comprises the following steps: the conventional sprayer is adopted for spraying the foliage to ensure accurate dosage and uniform distribution

Time and frequency of application: the pesticide is applied for 6 months and 15 days in 2018, and is sprayed once.

Investigation method, time and number of times: investigation time and number of times: the 2 nd survey was conducted with the first survey time No. 6/month 17 and the second survey time No. 6/month 22.

The investigation method comprises the following steps: survey can be carried out in the morning of fine day and in the whole cloudy day. The number of worms on 100 young leaves (generally, the 2 nd young leaf under bud) was randomly investigated per cell.

The drug effect calculation method comprises the following steps:

according to standard GB/T17980.56-2004

Oral cavity decline rate (%) [ (number of living insects before application-number of living insects after application)/number of living insects before application ] × 100

Results and analysis:

the conclusion of the data of the efficacy test of the 30 percent diafenthiuron and the cyromonamid suspending agent for preventing and controlling the tea plant leafhoppers is shown in table 2.

Test result of field pesticide effect of 230% of cyromaniliprole-diafenthiuron suspending agent on controlling tea tree leafhoppers

And (3) evaluation of the medicament: as can be seen from the field test results (see Table 2), the 30% diafenthiuron-cyromonamide suspending agent has better effect on controlling tea leafhoppers. Under the condition of 1500 times of liquid, the oral cavity decline rate of the worm is 96.97 percent after 2 days of the application and 100 percent after 7 days of the application, which are both higher than the oral cavity decline rate of a single dose and a local conventional medicament. In the test process, the effect of the 30% diafenthiuron and the cyclobromantraniliprole suspending agent on tea trees and main natural enemies is not found, and the suspending agent can be popularized and applied.

Example 8: diafenthiuron and cyromonamide are mixed to match the field drug effect of peach fruit borer

The purpose of the test is as follows: through field tests, the control effect of the 30% diafenthiuron and cyclobromantraniliprole suspending agent on the peach fruit borers is determined, and a basis is provided for registration, popularization and application of pesticides.

Selection of subjects, crops and varieties: the test crop is 6-year-old peach tree, the variety is long-life, the tested insect is peach fruit borer (Carposina nipponensis), and the occurrence degree is moderate in the year.

Environmental conditions: the test field is arranged in an orchard of a Helier ecological garden in Lai xi city, Shandong province, the peach tree variety is long-lasting, the tree grows for 6 years, the irrigation condition is good, and the soil fertility is moderate and upward.

Test reagents and dosage: see table 3.

Cell area and repetition: each cell is provided with 3 trees, and the process is repeated for 4 times.

The application method comprises the following steps: the drug administration is started when the peach fruit borers are used.

Time and frequency of application: the medicine is applied once in 2018, 4 and 27 months.

Capacity of use: the spraying is uniform and consistent, most leaves are sprayed with the liquid medicine until the liquid medicine drips, and the average spraying liquid medicine amount of each cell is 12-15 kilograms.

Investigation time and number of times: the base number was investigated before application and once 14 days after application.

The drug effect calculation method comprises the following steps: the prevention and treatment effect is expressed by correcting the population decline rate, and statistical calculation is carried out according to the method specified by national standard GB/T17980.65-2000 'pesticide field efficacy test criteria (II)'.

Oral cavity decline rate (%) [ (number of living insects before application-number of living insects after application)/number of living insects before application ] × 100

Control effect (%) - (treatment area oral cavity decline rate-control area oral cavity decline rate)/(100-control area oral cavity decline rate) × 100

Direct impact on crops: during the experimental observation period, no phytotoxicity phenomenon or other growth stimulation effects on the peach trees are found.

Results and analysis

Table 330% Cyclobromantraniliprole-diafenthiuron suspension agent for preventing and controlling peach fruit borers in field efficacy test result

And (3) evaluating the drug effect: test results show that the test agent 30% of diafenthiuron and cyclobromoantraniliprole suspending agent has good control effect on peach fruit borers of peach trees, the control effect is 96.15% 14 days after the use of the agent, the effect lasts well, no drug harm is caused to the peach trees, and the agent can be popularized and applied in production.

The results of the indoor activity and field efficacy tests show that the compound of diafenthiuron and cyclobromoantraniliprole can effectively prevent and control tea tree tea leafhoppers and peach fruit borers, the composition has obvious synergistic interaction, the prevention and control effect is better than that of a single agent, and the prevention and control period is long; has no adverse effect on tea trees and peach trees in the application range of the test, and has application value.

Claims (9)

1. An insecticidal composition containing cyromaniliprole and diafenthiuron is characterized in that the composition contains active ingredients of cyromaniliprole and diafenthiuron.

2. The insecticidal composition according to claim 1, wherein the weight ratio of the active ingredient of the cyclic bromantraniliprole to the active ingredient of the diafenthiuron is 1: 80-80: 1.

3. The insecticidal composition according to claim 1, wherein the weight ratio of the active ingredient of the cyclic bromantraniliprole to the active ingredient of the diafenthiuron is 1: 50-50: 1.

4. The insecticidal composition according to claim 1, wherein the weight ratio of the active ingredient of the cyclic bromantraniliprole to the active ingredient of the diafenthiuron is 1: 20-20: 1.

5. The insecticidal composition according to claim 1, wherein the weight ratio of the active ingredient of the cyclic bromantraniliprole to the active ingredient of the diafenthiuron is 1: 5-5: 1.

6. An insecticidal composition according to claim 1, wherein the sum of the active ingredients in the composition is from 1% to 90%, preferably from 10% to 50% by weight of the total composition.

7. The insecticidal composition of claim 1, wherein the composition is formulated into any dosage form suitable for agricultural use.

8. The insecticidal composition of claim 7, wherein said composition can be prepared into any one of agriculturally acceptable formulation forms including powder, dispersible tablet, granule, soluble powder, soluble granule, soluble tablet, emulsion powder, emulsion granule, water dispersible granule, wettable powder, microcapsule granule, powder, macrogranule, water dispersible tablet, microcapsule suspension, dispersible solution, emulsifiable concentrate, emulsion granule, oil emulsion, emulsion powder, water emulsion, microemulsion, oil dispersible suspension, oil dispersible powder, suspension, suspoemulsion, soluble solution, ultra-low volume liquid, suspended seed coating, dry seed treatment powder, dispersible seed treatment powder, suspension treatment suspension, seed treatment liquid; the preferable preparation formulation is suspending agent, microemulsion, missible oil, wettable powder and water dispersible granule.

9. Use of the pesticidal composition according to claims 1-8 for controlling hemiptera, thysanoptera, lepidoptera, homoptera pests.