Synergistic insecticidal composition containing tolfenpxrad and cyfloxylate and application thereof

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

Inactive Publication Date: 2013-04-17
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 prod

Method used

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  • Synergistic insecticidal composition containing tolfenpxrad and cyfloxylate and application thereof
  • Synergistic insecticidal composition containing tolfenpxrad and cyfloxylate and application thereof
  • Synergistic insecticidal composition containing tolfenpxrad and cyfloxylate and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Fenpyran and cyfluthrin were weighed and prepared according to different proportions by conventional preparation methods to prepare tonamiprole-cyfluthrin emulsifiable concentrate with a main active ingredient weight percentage of 30%. See Table 1 for specific proportions.

[0022] Adopt the feed poisoning method to measure the toxicity of tonamiprole, cyfluthrin and its compound samples to cotton bollworm, each treatment is repeated 3 times, each concentration handles 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 toxinpyrad, cyfluthrin and their compound samples to cotton bollworm

[0024]

[0025] The data in the table shows that the mixture of Fenpyran and cyfluthrin has a synergistic effect on cotton bollworm, and the co-toxicity coefficients of the four ratios listed in the table are all far greater than 120, so the mixing of Fenpyran and cyfluth...

Embodiment 2

[0027] Fenpyran and cyfluthrin were weighed and prepared according to different proportions by conventional preparation methods to prepare tonamiprole-cyfluthrin emulsifiable concentrate with a main active ingredient weight percentage of 30%. See Table 2 for specific proportions.

[0028] The rice stem dipping method was used to determine the toxicity of tonamiprole, 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:

[0029] Table 2 Toxicity determination and co-toxicity coefficient of pyrenpyrad, cyfluthrin and their compound samples to diamondback moth

[0030]

[0031]

[0032] The data in the table shows that the mixture of Fenpyran and cyfluthrin has a synergistic effect on Plutella xylostella, and the co-toxicity coefficients of the four ratios listed in the table are all far greater than 120, so the mixing of Fenpyran and cyfluthrin h...

Embodiment 3

[0034] Weigh 5g of pyrenpyran, 20g of cyfluthrin, 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. , form the main active ingredient weight percentage content of 25% tofufenpyramide-cyfluthrin emulsifiable concentrate.

[0035] Adopt the sample of embodiment 3 to carry out the field test of preventing and treating cotton bollworm in field, contrast agent is 15% tolfenpyrad EC and 5.7% cyfluthrin EC, and with clear water as blank control, concrete consumption sees Table 3, water consumption per mu It is 30kg, check 3 days after medicine, 7 days, 14 days, 28 days result, test result is shown in Table 3:

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Abstract

The invention discloses a synergistic insecticidal composition containing tolfenpxrad and cyfloxylate and an application thereof. The insecticidal composition takes the tolfenpxrad and the cyfloxylate as main active ingredients, wherein the weight ratio of the tolfenpxrad to the cyfloxylate is (0.1-80):(0.5-80). The insecticidal composition has the effects of expanding a control spectrum and realizing synergy, can reduce the cost of medication, can be prepared into missible oil, wettable powder, micro-emulsion, aqueous emulsion, suspension and water dispersible granules, and can be used for controlling lepidoptera, homoptera, hymenoptera, coleoptera and other various 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 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 new type...

Claims

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Application Information

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IPC IPC(8): A01N53/08A01N43/56A01P7/04
Inventor 陈文明刘奎涛杨晓生沈海峰王静
Owner NANJING HUAZHOU PHARMA
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