Synergistic insecticidal composition containing tolfenpxrad and chlorfluazuron and application thereof

An insecticidal composition and technology of tonamirad, which is applied in the field of pesticides, can solve the problems of high cost of pesticides for farmers, failure to protect crops, and easy to produce drug resistance, etc., to reduce the amount of pesticides used in the field, reduce environmental pollution and pesticide residues, and reduce The effect of preventing and controlling labor costs

Inactive Publication Date: 2013-04-17
NANJING HUAZHOU PHARMA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] Insecticide varieties containing a single component often have defects in the control of pesticide pests: continuous use is easy to produce resistance, narrow insecticidal spectrum, cannot provide comprehensive protection for crops, and the cost of pesticides for farmers is high.

Method used

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  • Synergistic insecticidal composition containing tolfenpxrad and chlorfluazuron and application thereof
  • Synergistic insecticidal composition containing tolfenpxrad and chlorfluazuron and application thereof
  • Synergistic insecticidal composition containing tolfenpxrad and chlorfluazuron and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Fenpyran and chlorfluazuron were weighed and prepared in different proportions according to conventional preparation methods to prepare 30% by weight of the main active ingredients. See Table 1 for specific proportions.

[0022] The toxicity of tonamiprole, chlorfluazuron and their compound samples to rice stem borer was determined by feed poisoning method, each treatment was repeated 3 times, 30 heads were treated at each concentration, and LC was used. 50 Calculate the co-toxicity coefficient according to Sun Yunpei's method:

[0023] Table 1 Toxicity determination and co-toxicity coefficient of pyrenpyran, chlorfluazuron and their compound samples to rice stem borer

[0024]

[0025] The data in the table shows that the mixture of tomefenpyran and chlorfluazuron has a synergistic effect on rice stem borer, and the co-toxicity coefficients of the four combinations listed in the table are all far greater than 120. Mixing has a significant synergistic effect. Amon...

Embodiment 2

[0027] Fenpyran and chlorfluazuron were weighed and prepared in different proportions according to conventional preparation methods to prepare 30% by weight of the main active ingredients. See Table 2 for specific proportions.

[0028] The rice stem dipping method was used to determine the toxicity of tolfenpyrad, chlorfluazuron and their compound samples to cotton bollworm, each treatment was repeated 3 times, and the LC 50 Calculate the co-toxicity coefficient according to Sun Yunpei's method:

[0029] Table 2 Toxicity determination and co-toxicity coefficient of toxinpyrad, chlorfluazuron and their compound samples to cotton bollworm

[0030]

[0031] The data in the table shows that the mixture of tonamifen and chlorfluazuron has a synergistic effect on cotton bollworms, and the co-toxicity coefficients of the four ratios listed in the table are all far greater than 120. Has a significant synergistic effect. Among them, the synergistic effect of killing cotton bollwo...

Embodiment 3

[0033] Weigh 5g of pyrenpyrad, 20g of chlorfluazuron, 4g of calcium dodecylbenzenesulfonate, 3g of phenethylphenol polyoxyethylene ether, and xylene to 100g, and put the above raw materials into the mixing kettle according to the conventional method of preparing emulsifiable concentrate Mixing to form the tonfenpyramide·chlorfluazuron emulsifiable concentrate whose main active ingredient is 25% by weight.

[0034] The sample prepared in Example 3 was used to carry out the field test of preventing and treating the rice leaf roller in the field. The control agents were 15% Fenpyrad EC and 5% Chlorfluazuron EC, and clear water was used as a blank control. The specific dosage is shown in Table 3. The water consumption per mu is 30kg, and the results are checked for 3 days, 7 days, 14 days, and 28 days after the medicine. The test results are shown in Table 3:

[0035] Table 3 example 3 sample is to the field test result of paddy rice leaf roller

[0036]

[0037]

[0038] I...

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Abstract

The invention discloses a synergistic insecticidal composition containing tolfenpxrad and chlorfluazuron and an application thereof. The insecticidal composition takes the tolfenpxrad and the chlorfluazuron as main active ingredients, wherein the weight ratio of the tolfenpxrad to the chlorfluazuron is (0.1-80):(0.5-80). The insecticidal composition has the effects of expanding a control spectrum and realizing synergy, can reduce the cost of medication, can be prepared into missible oil, wettable powder, micro-emulsion, aqueous emulsion, suspension and water dispersible granules, and can be used for controlling lepidoptera, homoptera, hymenoptera, coleoptera and other various pests.

Description

technical field [0001] The invention belongs to the field of pesticides, and in particular relates to a synergistic insecticidal composition containing tofenpyrad and chlorfluazuron and an application thereof. Background technique [0002] Tolfenpyrad (Tolfenpyrad), chemical name: 4-chloro-3-ethyl-1-methyl-N-{[4-(4-methylphenoxy)phenyl]-methyl}-1H pyrazole -5-Carboxamide, off-white solid powder, density (25°C): 1.18g / cm, vapor pressure (25°C): <5×10Pa. Solubility (25°C): water 0.037mg / L, n-hexane 7.41g / L, toluene 366g / L, methanol 59.6g / L. Partition coefficient (n-octanol / water) (25°C): log Pow 5.61, the structural formula is: [0003] [0004] The acute toxicity of the tonfenpyrad preparation is: oral LD50102 (male), 83 (female) mg / kg for rats; oral LD50104 (male), 108 (female) mg / kg for mice. The acute percutaneous toxicity is relatively low, with LD50>2000mg / kg for rats and mice. Moderately irritating to rabbit eyes and skin. [0005] Fenpyramid is a new type...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N47/34A01N43/56A01P7/04
Inventor 陈文明刘奎涛杨晓生沈海峰韦琛鸿
Owner NANJING HUAZHOU PHARMA
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