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A synergistic insecticidal composition containing propargite and chlorpyrifos and its application

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

Inactive Publication Date: 2018-08-03
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 synergistic insecticidal composition containing propargite and chlorpyrifos and its application
  • A synergistic insecticidal composition containing propargite and chlorpyrifos and its application
  • A synergistic insecticidal composition containing propargite and chlorpyrifos and its application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Combined Toxicity of Propyridine and Chlorpyrifos in Different Ratio

[0023] Weighing propargid and chlorpyrifos are prepared in different proportions by conventional preparation methods to prepare a propargid-chlorpyrifos suspension with a main active ingredient weight percentage of 30%. See Table 1 for specific proportions.

[0024] The toxicity of propargite, chlorpyrifos and their compound samples to citrus spider mite was determined by dipping slides. Each treatment was repeated 3 times, and each concentration was treated with 30 heads. 50 Calculate the co-toxicity coefficient according to Sun Yunpei's method:

[0025] Table 1 Toxicity determination and co-toxicity coefficient of citrus red spider mites against citrus red spider mite, chlorpyrifos and its compound samples

[0026]

Embodiment 2

[0028] Weighing propargid and chlorpyrifos were prepared in different proportions by conventional preparation methods to prepare propargid-chlorpyrifos emulsifiable concentrate with a main active ingredient weight percentage of 30%. See Table 2 for specific proportions.

[0029] The test method uses the method of soaking the leaves first and then inoculating the insects to determine the toxicity of propargite, chlorpyrifos and their compound samples to the brown planthopper. Each treatment is repeated 3 times, and the LC 50 Calculate the co-toxicity coefficient according to Sun Yunpei's method:

[0030] Table 2 Toxicity determination and co-toxicity coefficient of propargite, chlorpyrifos and their compound samples to brown planthopper

[0031]

[0032] The data in the table shows that the mixture of propargid and chlorpyrifos has a synergistic effect on brown planthoppers, and the co-toxicity coefficients of the four ratios listed in the table are all far greater than 120...

Embodiment 3

[0034] Weigh 5g of propargite, 20g of chlorpyrifos, 4g of calcium dodecylbenzenesulfonate, 3g of phenethylphenol polyoxyethylene ether, and 100g of xylene, and put the above raw materials into a mixing tank according to the conventional method for preparing emulsifiable concentrate. A propargite·chlorpyrifos emulsifiable concentrate with a main active ingredient weight percentage of 25% is formed.

[0035] Adopt the sample of embodiment 3 to carry out the field test of controlling citrus spider mite in field, contrast agent is 57% propargite EC and 2.5% chlorpyrifos EC, and concrete consumption is shown in Table 3, and water consumption per mu is 30kg, check 3 days after medicine , 7 days, 14 days, 28 days results, the test results are shown in Table 3:

[0036] Table 3 example 3 sample is to the field test result of citrus spider mite

[0037]

[0038] It can be seen from Table 3 that Example 3 has excellent quick-acting effect on citrus spider mite, and has a relatively ...

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Abstract

The invention discloses a synergistic insecticidal composition containing propargite and chlorpyrifos as well as application thereof. The insecticidal composition takes propargite and chlorpyrifos as main effective components and the weight ratio of propargite to chlorpyrifos ranges from (1:60) to (60:1). The composition disclosed by the invention can be used for preventing and treating a plurality of types of injurious insects, has a remarkable synergistic effect and can be used for expanding the insecticidal spectrum; the synergistic insecticidal composition has relatively high activity on a plurality of types of chewing type and piercing-sucking type mouthpart injurious insects on rice, wheat, cotton, fruit trees, vegetables and tea trees; the dosage of pesticides is reduced, the residual amount of the pesticides on crops is reduced and environmental pollution is alleviated; and the synergistic insecticidal composition is safe to human and livestock and has good environment compatibility, and the injurious insects cannot easily have drug resistance.

Description

technical field [0001] The invention belongs to the field of pesticides, and in particular relates to an insecticidal composition with propargite and chlorpyrifos 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] Chlorpyrifos (chlorpyrifos), structural formula: [0006] [0007] Chlorpyrifos (also known as chlorpyrifos, Lesben, Chlorpyrifos) is an acetylcholinesterase inhibitor and belongs to t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01N57/16A01N41/04A01P7/04
CPCA01N41/04A01N57/16A01N2300/00
Inventor 陈叶青郭崇友张宝俊万维肖石振龙
Owner NANJING HUAZHOU PHARMA
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