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Synergistic insecticidal composition containing tolfenpxrad and flonicamid and application thereof

A technology of flonicamid and insecticidal composition, which is applied in the field of synergistic insecticidal composition, can solve the problems of high cost of pesticide application for farmers, failure to protect crops, and easy generation of drug resistance, etc., to reduce the amount of application in the field and reduce the use of pesticides Residue, reduce the effect of prevention and control labor costs

Active 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 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 flonicamid and application thereof
  • Synergistic insecticidal composition containing tolfenpxrad and flonicamid and application thereof
  • Synergistic insecticidal composition containing tolfenpxrad and flonicamid and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Weighing tonamirad and flonicamid were prepared in different proportions by conventional preparation methods to prepare tonamirad·fluonicamid emulsifiable concentrate with a main active ingredient weight percentage of 30%. See Table 1 for specific proportions.

[0023] The toxicity of tonamirad, flonicamid and their compound samples to the rice leaf roller was determined by feed poisoning method, each treatment was repeated 3 times, each concentration was treated with 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 tolfenpyrad, flonicamid and their compound samples to rice leaf roller

[0025]

[0026] The data in the table shows that the mixture of tonamirad and flonicamid 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. The compounding of flonicamid...

Embodiment 2

[0028] Weighing tonamirad and flonicamid were prepared in different proportions by conventional preparation methods to prepare tonamirad·fluonicamid 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 tonamirad, flonicamid and their compound samples to vegetable aphids, each treatment was repeated 3 times, and LC 50 Calculate the co-toxicity coefficient according to Sun Yunpei's method:

[0030] Table 2 Determination of toxicity and co-toxicity coefficient of tonpyran, flonicamid and their compound samples to vegetable aphids

[0031]

[0032] The data in the table shows that the mixture of tonamirad and flonicamid has a synergistic effect on vegetable aphids, and the co-toxicity coefficients of the four ratios listed in the table are all far greater than 120. Mixing has a significant synergistic effect. Among them, when the ratio...

Embodiment 3

[0034] Weigh 5g of pyrenpyran, 20g of flonicamid, 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 tonamiprole flonicamid 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. The control agents were 15% tonamirad EC and 10% flonicamid WDG, and clear water was used as the blank control. The specific dosage is shown in Table 3 , 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:

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

[0037]

[0038]

[0039] It can be seen from...

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Abstract

The invention discloses a synergistic insecticidal composition containing tolfenpxrad and flonicamid and an application thereof. The insecticidal composition takes the tolfenpxrad and the flonicamid as main active ingredients, wherein the weight ratio of the tolfenpxrad to the flonicamid 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, thysanoptera or 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 flonicamid 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 preparation of tonpyradramid is: oral LD ​​in rats 50 102 (male), 83 (female) mg / kg; Oral LD ​​for mice 50 104 (male), 108 (female) mg / kg. Acute dermal toxicity is relatively low, for rats and mice LD 50 All>2000mg / kg. 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): A01N43/56A01N43/40A01P7/04
Inventor 陈文明刘奎涛杨晓生沈海峰乔璐曼
Owner NANJING HUAZHOU PHARMA
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