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Synergistic insecticidal composition containing tolfenpyrad and theta-cypermethrin and its application

A technology of trans-cypermethrin and an insecticidal composition is applied in the field of synergistic insecticidal composition, which can solve the problems of high drug cost for farmers, easy generation of drug resistance, and inability to protect crops, and achieves reduction of field drug dosage and environmental pollution. and pesticide residues, and the effect of reducing labor costs for prevention and control

Inactive Publication Date: 2013-04-24
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 tolfenpyrad and theta-cypermethrin and its application
  • Synergistic insecticidal composition containing tolfenpyrad and theta-cypermethrin and its application
  • Synergistic insecticidal composition containing tolfenpyrad and theta-cypermethrin and its application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Fenpyran and beta-trans-cypermethrin were weighed and prepared in different proportions by conventional preparation methods to prepare tolfenpyrad-beta-trans-cypermethrin emulsifiable concentrate with a main active ingredient weight percentage of 30%. See Table 1 for specific proportions.

[0023] The poisoning method of feed was used to determine the toxicity of tonamiprole, beta-trans-cypermethrin and their compound samples to cotton bollworm. 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:

[0024] Table 1 Toxicity determination and co-toxicity coefficient of toxinpyrad, beta-cypermethrin and their compound samples to cotton bollworm

[0025]

[0026] The data in the table shows that toxinpyran and beta-cypermethrin have a synergistic effect on cotton bollworm after mixing, and the co-toxicity coefficients of the four ratios listed in the table are al...

Embodiment 2

[0028] Fenpyran and beta-trans-cypermethrin were weighed and prepared in different proportions by conventional preparation methods to prepare tolfenpyrad-beta-trans-cypermethrin emulsifiable concentrate with a main active ingredient weight percentage of 30%. See Table 2 for specific proportions.

[0029] The rice stem dipping method was used to determine the toxicity of tonamiprole, beta-cypermethrin and their compound samples to Plutella xylostella, each treatment was repeated 3 times, and LC 50 Calculate the co-toxicity coefficient according to Sun Yunpei's method:

[0030] Table 2 Toxicity determination and co-toxicity coefficient of toxenpyrad, beta-cypermethrin and their compound samples to diamondback moth

[0031]

[0032] The data in the table shows that toxinpyran and beta-cypermethrin have a synergistic effect on Plutella xylostella after mixing, and the co-toxicity coefficients of the four ratios listed in the table are all greater than 100. With a significant ...

Embodiment 3

[0034] Weigh 5g of pyrenpyrad, 20g of beta-cypermethrin, 4g of calcium dodecylbenzenesulfonate, 3g of phenethylphenol polyoxyethylene ether, add xylene to 100g, and mix the above raw materials according to the conventional method of preparing emulsifiable concentrate mixing in a kettle to form tonamiprole-beta-cypermethrin emulsifiable concentrate whose main active ingredient is 25% by weight.

[0035] The sample that adopts embodiment 3 to carry out the field test of field prevention and control cotton bollworm, contrast agent is 15% tolfenpyrad EC (emulsifiable concentrate) and 5% beta-cypermethrin EC, and concrete consumption is shown in Table 3, and water consumption per mu is 30kg , Check the results after 3 days, 7 days, 14 days, and 28 days after taking the medicine. Use clear water as a blank control, and the test results are shown in Table 3:

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Abstract

The invention discloses a synergistic insecticidal composition containing tolfenpyrad and theta-cypermethrin and its application. The insecticidal composition takes tolfenpyrad and theta-cypermethrin as main effective components, wherein tolfenpyrad and theta-cypermethrin are in a weight ratio of 0.1-80:0.5-80. With a synergistic effect, the insecticidal composition can expand the control spectrum, reduce the drug cost, and can be prepared into missible oil, wettable powder, microemulsions, emulsions in water, suspending agents and water dispersible granules, as well as can be used for controlling Lepidoptera, Homoptera, Hymenoptera, Coleoptera and other pests.

Description

technical field [0001] The invention belongs to the field of pesticides, and in particular relates to a synergistic insecticidal composition containing tolfenpyrad and high-beta-trans-cypermethrin 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 LD50 for rats 102 (male), 83 (female) mg / kg; oral LD50 for mice 104 (male), 108 (female) mg / kg. The acute percutaneous toxicity is relatively low, with LD50>2000mg / kg for rats and mice. Moderately irritating to rabbit eyes and skin. [0005] Fenpyr...

Claims

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Application Information

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IPC IPC(8): A01N53/08A01N43/56A01P7/04
Inventor 彭永强刘奎涛杨晓生贠琰陈凤
Owner NANJING HUAZHOU PHARMA
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