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Synergistic insecticidal composition containing tolfenpyrad and beta-cyfluthrin and application

A high-efficiency cyfluthrin and insecticidal composition technology, applied in the field of pesticides, can solve the problems of high cost of pesticides for farmers, inability to protect crops, and easy to produce drug resistance, so as to reduce the amount of pesticides used in the field, reduce environmental pollution and pesticide residues, reduce The effect of preventing and controlling labor costs

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 beta-cyfluthrin and application
  • Synergistic insecticidal composition containing tolfenpyrad and beta-cyfluthrin and application
  • Synergistic insecticidal composition containing tolfenpyrad and beta-cyfluthrin and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Fenpyran and beta-cyfluthrin were weighed and prepared in different proportions by conventional preparation methods to prepare tonamiprole-beta-cyfluthrin 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-cyfluthrin 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, lambda-cyfluthrin and their compound samples to cotton bollworm

[0025]

[0026] The data in the table shows that the mixture of tofenpyrad and beta-cyfluthrin has a synergistic effect on cotton bollworm, and the co-toxicity coefficients of the four ratios listed in the table are all greater than 100, so th...

Embodiment 2

[0028] Fenpyran and beta-cyfluthrin were weighed and prepared in different proportions by conventional preparation methods to prepare tonamiprole-beta-cyfluthrin 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-cyfluthrin 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 pyrenpyrad, lambda-cyfluthrin and their compound samples to Plutella xylostella

[0031]

[0032]

[0033] The data in the table shows that after the mixture of tonfenpyrad and beta-cyfluthrin has a synergistic effect on diamondback moth, the co-toxicity coefficients of the four ratios listed in the table are all greater than 100, so the mixture of tofenp...

Embodiment 3

[0035] Weigh 5g of pyrenpyramid, 20g of beta-cyfluthrin, 4g of calcium dodecylbenzenesulfonate, 3g of phenethylphenol polyoxyethylene ether, add xylene to 100g, and put the above raw materials into the mixing kettle according to the conventional method of preparing emulsifiable concentrate Mixed in middle, form the main active ingredient weight percent content of tonamiprole·beta-cyfluthrin emulsifiable concentrate of 25%.

[0036] The sample that adopts embodiment 3 to carry out the field test of field control cotton bollworm in the field, contrast agent is 15% tolfenpyrad EC (emulsifiable concentrate) and 25 grams / liter beta-cyfluthrin EC, and concrete consumption is shown in Table 3, and the 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:

[0037] Table 3 Field test results of example 3 samples on cotton bollworm

[0038]...

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Abstract

The invention discloses a synergistic insecticidal composition containing tolfenpyrad and beta-cyfluthrin and an application, the synergistic insecticidal composition takes tolfenpyrad and beta-cyfluthrin as main effective components, wherein the weight ratio of tolfenpyrad to beta-cyfluthrin is 0.1-80:0.5-80. The insecticidal composition has effects for enlarging the prevention and cure scope and synergia, and the medication cost is reduced, and the synergistic insecticidal composition can be prepared to a missible oil, a wettable powder, a microemulsion, an emulsion in water, a suspending agent and a water dispersible granule, and the synergistic insecticidal composition can be used for preventing and treating various pests such as Lepidoptera, Homoptera, Hymenoptera and coleopteran.

Description

technical field [0001] The invention belongs to the field of pesticides, and in particular relates to a synergistic insecticidal composition containing tolfenpyrad and lambda-cyfluthrin 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] Fenpyramid is a n...

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曹志斌韦琛鸿
Owner NANJING HUAZHOU PHARMA
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