Synergistic insecticidal composition containing Tolfenpyrad and alpha-cypermethrin and its application

A technology of cis-cypermethrin and insecticidal composition, which is applied in the field of synergistic insecticidal composition, can solve the problems of farmers' high cost of application, inability to protect crops, and easy generation of drug resistance, etc., to reduce the amount of application in the field and reduce environmental pollution and pesticide residues, 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 alpha-cypermethrin and its application
  • Synergistic insecticidal composition containing Tolfenpyrad and alpha-cypermethrin and its application
  • Synergistic insecticidal composition containing Tolfenpyrad and alpha-cypermethrin and its application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

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

[0022] The toxicity to cotton bollworm of cotton bollworm was determined by the feed poisoning method of tonamiprole, cis-cypermethrin and its compound samples. 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:

[0023] Table 1 Toxicity determination and co-toxicity coefficient of toxinpyrad, cis-cypermethrin and their compound samples to cotton bollworm

[0024]

[0025] The data in the table shows that toxinpyrad and cis-cypermethrin have a synergistic effect on cotton bollworm after mixing, and the co-toxicity coefficients of the four ratios listed in the table are all greater tha...

Embodiment 2

[0027] Fenpyran and cis-cypermethrin were weighed and prepared in different proportions by conventional preparation methods to prepare tonamiprole-cis-cypermethrin 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, cis-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:

[0029] Table 2 Toxicity determination and co-toxicity coefficient of pyrenpyrad, cis-cypermethrin and their compound samples to Plutella xylostella

[0030]

[0031] The data in the table shows that after the mixing of Fenpyrad and cis-cypermethrin, there is a synergistic effect on diamondback moth, and the co-toxicity coefficients of the four ratios listed in the table are all greater than 100, so the mixing of Fenpyran a...

Embodiment 3

[0033] Weigh 5g of pyrenpyran, 20g of cis-cypermethrin, 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 percentage content of 25% tofufenpyramide cis-cypermethrin emulsifiable concentrate.

[0034] 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% cis-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 alpha-cypermethrin and its application. The insecticidal composition takes Tolfenpyrad and alpha-cypermethrin as main effective components, wherein Tolfenpyrad and alpha-cypermethrin are in a weight ratio of 0.1-80:0.5-80. With control spectrum-expanding and synergistic effects, the insecticidal composition can reduce the drug cost, can be prepared into missible oil, wettable powder, microemulsions, emulsions in water, suspending agents as well as water dispersible granules, and 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 cis-cypermethrin and an application thereof. Background technique [0002] Fenpyrad (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 t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N53/08A01N43/56A01P7/04
Inventor 彭永强倪峰戴顺坤贠琰王静
Owner NANJING HUAZHOU PHARMA
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