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A kind of synergistic insecticidal composition containing propargite and centrin and its application

An insecticidal composition and technology of centrin, applied in the field of pesticides, can solve the problems of high cost of pesticides for farmers, easy to produce drug resistance, and inability to protect crops, so as to reduce the amount of pesticides used in the field, reduce environmental pollution and pesticide residues, The effect of reducing the labor cost of prevention and control

Active Publication Date: 2018-09-07
NANJING HUAZHOU PHARMA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] 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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  • A kind of synergistic insecticidal composition containing propargite and centrin and its application
  • A kind of synergistic insecticidal composition containing propargite and centrin and its application
  • A kind of synergistic insecticidal composition containing propargite and centrin and its application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Weighing propargite and centrythrin were prepared in different proportions by conventional preparation methods to prepare propargite-centrythrin suspension concentrate with a weight percentage of the main active ingredient being 30%. See Table 1 for specific proportions.

[0022] The toxicity of propargite, centrin and their compound samples to citrus spider mite was determined by dipping slide method, each treatment was repeated 3 times, each concentration treated 30 heads, and LC 50 Calculate the co-toxicity coefficient according to Sun Yunpei's method:

[0023] : Table 1 Toxicity determination and co-toxicity coefficient of citrus red spider mite to citrus red spider

[0024]

[0025] The data in the table shows that the mixture of propargite and chlorothrin has a synergistic effect on citrus red spider mite, and the co-toxicity coefficients of the four ratios listed in the table are all greater than 120, so propargite and chlorothrin Mixing has a significant sy...

Embodiment 2

[0027] Weighing propargite and centrythrin were prepared in different proportions by conventional preparation methods to prepare propargite-centrythrin emulsifiable concentrate with a main active ingredient weight percentage of 30%. See Table 2 for specific proportions.

[0028] The test used the rice stem dipping method to determine the toxicity of propargite, centrin and their compound samples to rice planthoppers. 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 propargite, centrin and their compound samples to rice planthoppers

[0030]

[0031] The data in the table shows that the mixture of propargid and chlorothrin has a synergistic effect on rice planthoppers, and the co-toxicity coefficients of the four ratios listed in the table are all far greater than 120. The combination of permethrin has a significant synergistic ef...

Embodiment 3

[0033] Weigh 5g of propargite, 20g of chlorothrin, 4g of calcium dodecylbenzenesulfonate, 3g of phenethylphenol polyoxyethylene ether, and xylene to 100g, and put the above raw materials into the mixing tank according to the conventional method of preparing emulsifiable concentrate Mixing in medium to form propargite-centrin emulsifiable concentrate whose main active ingredient is 25% by weight.

[0034] Adopt the sample that embodiment 3 is equipped to carry out the field test of preventing and treating citrus spider mite in field, contrast agent is 57% propargite EC and 5.7% centrinate EC, and concrete consumption is shown in Table 3, and the water consumption per mu is 30kg, after the medicine Check the results of 3 days, 7 days, 14 days, and 28 days. The test results are shown in Table 3:

[0035] Table 3 Example 3 sample to the field test result of citrus spider mite

[0036]

[0037] It can be seen from Table 3 that Example 3 has excellent quick-acting effect on citr...

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Abstract

The invention discloses a synergistic insecticidal composition containing propargite and cyfluthrin and application thereof. The insecticidal composition takes the propargite and the cyfluthrin as main effective components, wherein the weight ratio of the propargite to the cyfluthrin is (1:60) to (60:1). The composition provided by the invention can be used for preventing and controlling a plurality of types of injurious insects and has a remarkable synergistic effect; an insecticidal spectrum is expanded; the synergistic insecticidal composition has relatively high activity on homoptera, lepidoptera and acarina injurious insects, and acarids including red spiders, tetranychids, panonychus and the like on cotton, fruit trees, vegetables and cereal crops; the dosage of a pesticide is reduced and the residual amount of the pesticide on the crops is reduced so that the environmental pollution is alleviated; the synergistic insecticidal composition is safe to human and livestock and has good environment compatibility; and the injurious insects do not easily have pesticide resistance.

Description

technical field [0001] The invention belongs to the field of pesticides, and in particular relates to an insecticidal composition with propargite and centrin as main active ingredients and an application thereof. Background technique [0002] Propargite, molecular formula: C 19 h 26 o 4 S, chemical name: 2-(4-tert-butylphenoxy)cyclohexylpropyn-2-yl sulfite. The structural formula is: [0003] [0004] It is a broad-spectrum, high-efficiency, and low-toxicity acaricide, which has contact and stomach poisoning effects, and has no penetration and systemic effects. It has good effect on juvenile nymphs and adult mites, but poor ovicidal effect. It can effectively control spider mite pests on apple trees, cotton, cucumbers, grapes, corn, soybeans, tomatoes and vegetables. [0005] Beta-cyfluthrin, structural formula: [0006] [0007] Centethrin is a non-systemic insecticide with contact and stomach toxicity. It acts on the nervous system, knocks down quickly, and h...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01N53/08A01N41/02A01P7/02A01P7/04
CPCA01N41/02A01N53/00A01N2300/00
Inventor 郭崇友孙会杰张宝俊邢刚彭永强
Owner NANJING HUAZHOU PHARMA
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