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Synergistic insecticidal composition containing tolfenpyrad and cypermethrin and application

An insecticidal composition and technology of cypermethrin, applied in the field of pesticides, can solve the problems of high cost of pesticides for farmers, easy to produce drug resistance, and inability to protect crops, so as to reduce the amount of pesticides used in the field, reduce environmental pollution and pesticide residues, and reduce labor costs for prevention and control. cost effect

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 cypermethrin and application
  • Synergistic insecticidal composition containing tolfenpyrad and cypermethrin and application
  • Synergistic insecticidal composition containing tolfenpyrad and cypermethrin and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

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

[0023] Adopt feed poisoning method to measure the toxicity of tonamiprole, cypermethrin and their 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:

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

[0025]

[0026] The data in the table shows that the mixture of Fenpyran and cypermethrin 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 the mixing of Fenpyrad and cypermethrin ...

Embodiment 2

[0028] Fenpyran and cypermethrin were weighed and prepared in different proportions by conventional preparation methods to prepare tonamiprole-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, cypermethrin and their compound samples to Plutella xylostella, each treatment was repeated 3 times, and LC was used. 50 Calculate the co-toxicity coefficient according to Sun Yunpei's method:

[0030] Table 2 Toxicity determination and co-toxicity coefficient of pyrenpyrad, cypermethrin and their compound samples to Plutella xylostella

[0031]

[0032]

[0033] The data in the table shows that the mixture of Fenpyrad and cypermethrin has a synergistic effect on Plutella xylostella, and the co-toxicity coefficients of the four ratios listed in the table are all greater than 100, so the mixture of Fenpyran and cy...

Embodiment 3

[0035] Weigh 5g of pyrenpyrid, 20g of cypermethrin, 4g of calcium dodecylbenzenesulfonate, 3g of phenethylphenol polyoxyethylene ether, add xylene to 100g, put the above raw materials into the mixing tank according to the conventional method of preparing cream , form the main active ingredient weight percentage content of 25% tofufenpyramide-cypermethrin emulsifiable concentrate.

[0036] The sample that adopts embodiment 3 to carry out the field test of field prevention and control cotton bollworm in field, contrast agent is 15% tolfenpyrad EC (emulsifiable concentrate) and 10% cypermethrin EC, and concrete consumption is shown in Table 3, and water consumption per mu is 30kg, after medicine Check the results of 3 days, 7 days, 14 days, and 28 days. 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 cypermethrin and an application, the synergistic insecticidal composition takes tolfenpyrad and cypermethrin as main effective components, wherein the weight ratio of tolfenpyrad to cypermethrin 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 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] Fenpyramid is a new ty...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N53/08A01N43/56A01P7/04
Inventor 彭永强刘奎涛贠琰陈志忠曹志斌
Owner NANJING HUAZHOU PHARMA
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