Synergistic insecticidal composition containing tolfenpyrad and indoxacarb and application

An insecticidal composition and a technology for tolafenamide, 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. The effect of preventing 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 indoxacarb and application
  • Synergistic insecticidal composition containing tolfenpyrad and indoxacarb and application
  • Synergistic insecticidal composition containing tolfenpyrad and indoxacarb and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

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

[0023] The toxicity of fenpyran, indoxacarb and their compound samples to rice stem borer was determined by feed poisoning method. 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 pyrenpyran, indoxacarb and their compound samples to rice stem borer

[0025]

[0026] The data in the table shows that the mixture of tofenpyrad and indoxacarb has a synergistic effect on rice stem borer, and the co-toxicity coefficients of the four ratios listed in the table are all far greater than 120. Therefore, tofenpyrad and indoxacarb Mixi...

Embodiment 2

[0028] Fenpyran and indoxacarb were weighed and prepared in different proportions by conventional preparation methods to prepare tonfenpyrad-indoxacarb emulsifiable concentrate with a main active ingredient weight percentage of 30%. See Table 2 for specific proportions.

[0029] The toxicity of tolfenpyrad, indoxacarb and their compound samples to rice leaf roller was determined by rice stem dipping method, 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 pyrenpyran, indoxacarb and their compound samples to rice leaf roller

[0031]

[0032] The data in the table shows that the mixture of Fenpyran and Indoxacarb has a synergistic effect on the rice leaf roller, and the co-toxicity coefficients of the four ratios listed in the table are all far greater than 120. Therefore, Fenpyran and Indoxan Granville mixing has a significa...

Embodiment 3

[0034] Weigh 5g of pyrenpyramid, 20g of indoxacarb, 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 medium to form tonfenpyrad-indoxacarb emulsifiable concentrate whose main active ingredient is 25% by weight.

[0035] The sample prepared in Example 3 was used to carry out the field test of controlling rice leaf roller in the field, and the contrast agent was 15% tolfenpyrad EC (emulsifiable concentrate) and 30% indoxacarb WDG (water dispersible granule), and the specific dosage is shown in the table 3. The water consumption per mu is 30kg, and the results will be checked in 3 days, 7 days, 14 days, and 28 days after treatment. Use clear water as a blank control, and the test results are shown in Table 3:

[0036] Table 3 example 3 sample is to the field test result of paddy rice leaf...

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Abstract

The invention discloses a synergistic insecticidal composition containing tolfenpyrad and indoxacarb and an application, the synergistic insecticidal composition takes tolfenpyrad and indoxacarb as main effective components, wherein the weight ratio of tolfenpyrad to indoxacarb 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, thysanoptera 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 indoxacarb 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 LD50102 (male), 83 (female) mg / kg for rats; oral LD50104 (male), 108 (female) mg / kg for mice. 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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IPC IPC(8): A01N47/38A01N43/56A01P7/04
Inventor 彭永强张颖戴顺坤贠琰倪峰
Owner NANJING HUAZHOU PHARMA
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