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A synergistic insecticidal composition containing propargite and sethrin and its application

An insecticidal composition and technology of sethrin, 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, The effect of reducing the labor cost of prevention and control

Active Publication Date: 2018-04-20
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 sethrin and its application
  • A synergistic insecticidal composition containing propargite and sethrin and its application
  • A synergistic insecticidal composition containing propargite and sethrin and its application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Combined toxicity of propargite and sethrin in different proportions

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

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

[0025] Table 1 Toxicity determination and co-toxicity coefficient of propargite, sethrin and their compound samples to citrus spider mite

[0026]

Embodiment 2

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

[0029] Test method The method of soaking the leaves first and then inoculating the insects was used to determine the toxicity of propargite, sethrin and their compound samples to SBPH, each treatment was 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, sethrin and their compound samples to SBPH

[0031]

[0032]

[0033] The data in the table shows that the mixture of propargid and sethrin has a synergistic effect on SBPH, and the co-toxicity coefficients of the four ratios listed in the table are all far greater than 120. Therefore, propargid and sethrin Ester blending has a ...

Embodiment 3

[0035] Weigh 5g of propargite, 20g of sethrin, 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 and mixed to form a propargite-sethrin emulsifiable concentrate whose main active ingredient is 25% by weight.

[0036] 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 10% sethrin 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:

[0037] Table 3 example 3 sample is to the field test result of citrus spider mite

[0038]

[0039] It can be seen from Table 3 that Example 3 has excellent quick-acting effect on citrus spider ...

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Abstract

The invention discloses a synergistic insecticidal composition containing propargite and silafluofen and application thereof. The insecticidal composition takes the propargite and the silafluofen as main effective components, wherein the weight ratio of the propargite to the silafluofen ranges from (1:60) to (60:1). The composition provided 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 red spiders, spider mites, panonychus ulmi, cotton bollworms, european corn borers, beet armyworms, rice planthopper, prodenia litura and the like of cereal crops, fruit trees, flowers, cotton and vegetables; the dosage of pesticides on crops is reduced, the residual amount of the pesticides on the 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 sethrin 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] Silafluofen, structural formula: [0006] [0007] Silfethrin is a silicon-containing pyrethroid insecticide whose effect is close to that of etofenprox, and can be used for rice and cotton...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01N55/10A01N41/02A01P7/02A01P7/04
CPCA01N41/02A01N55/00A01N2300/00
Inventor 杨琴郭崇友赵东亚白杰邢刚
Owner NANJING HUAZHOU PHARMA
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