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Synergistic insecticidal composition containing tolfenpxrad and flubendiamide and application thereof

A technology of flubendiamide and insecticidal composition, which is applied in the field of synergistic insecticidal composition, can solve the problems of farmers' high cost of drug use, easy generation of drug resistance, and inability to protect crops, so as to reduce the amount of field application and reduce the use of pesticides Residue, reduce the effect of prevention and control labor costs

Active Publication Date: 2014-07-23
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 tolfenpxrad and flubendiamide and application thereof
  • Synergistic insecticidal composition containing tolfenpxrad and flubendiamide and application thereof
  • Synergistic insecticidal composition containing tolfenpxrad and flubendiamide and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Fenpyran and flubendiamide were weighed and prepared in different proportions by conventional preparation methods to prepare tonamidran·flubendiamide emulsifiable concentrate with a main active ingredient weight percentage of 30%. See Table 1 for specific proportions.

[0025] The toxicity of tolfamirad, flubendiamide and their compound samples to rice leaf roller was determined by feed poisoning method, each treatment was repeated 3 times, and 30 heads were treated at each concentration, and the LC50 value was calculated according to Sun Yunpei's method. Toxicity factor:

[0026] Table 1 Toxicity determination and co-toxicity coefficient of pyrenpyran, flubendiamide and their compound samples to rice leaf roller

[0027]

[0028] The data in the table shows that the mixture of Fenpyran and Flubendiamide has a synergistic effect on rice leaf rollers, and the co-toxicity coefficients of the four ratios listed in the table are all far greater than 120. Therefore, Fenp...

Embodiment 2

[0030] Fenpyran and flubendiamide were weighed and prepared in different proportions by conventional preparation methods to prepare tonamidran·flubendiamide emulsifiable concentrate with a main active ingredient weight percentage of 30%. See Table 2 for specific proportions.

[0031] The rice stem dipping method was used to determine the toxicity of tolfamirad, flubendiamide and their compound samples to cotton bollworm, each treatment was repeated 3 times, and LC was used 50 Calculate the co-toxicity coefficient according to Sun Yunpei's method:

[0032] Table 2 Toxicity determination and co-toxicity coefficient of toxinpyrad, flubendiamide and their compound samples to cotton bollworm

[0033]

[0034] The data in the table shows that the mixture of Fenpyran and Flubendiamide has a synergistic effect on cotton bollworms. The co-toxicity coefficients of the four ratios listed in the table are all far greater than 120. Amide compounding has a significant synergistic effec...

Embodiment 3

[0036] Weigh 5g of pyrenpyran, 20g of flubendiamide, 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 and mixed in medium to form tofafenpyr-flubendiamide emulsifiable concentrate whose main active ingredient is 25% by weight.

[0037] The sample prepared in Example 3 was used to carry out the field test of controlling rice leaf roller in the field. The control agents were 15% Fenpyrad EC and 20% Flubendiamide WDG. The specific dosages are shown in Table 3, and clear water was used as a blank control , the water consumption per mu is 30kg, and the results are checked for 3 days, 7 days, 14 days, and 28 days after the medicine. The test results are shown in Table 3:

[0038] Table 3 example 3 sample is to the field test result of paddy rice leaf roller

[0039]

[0040]

[0041] It can be se...

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Abstract

The invention belongs to the field of agricultural chemicals and discloses a synergistic insecticidal composition containing tolfenpxrad and flubendiamide and an application thereof. The insecticidal composition takes the tolfenpxrad and the flubendiamide as main active ingredients, wherein the weight ratio of the tolfenpxrad to the flubendiamide 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 tolfamirad and flubendiamide and an application thereof. Background technique [0002] Fenpyrad (Tolfenpyrad), chemical name: -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 o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01N43/56A01N41/10A01P7/04
Inventor 陈文明赵广福杨晓生沈海峰乔璐曼
Owner NANJING HUAZHOU PHARMA
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