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Insecticidal composition containing tolfenpyradn and profenofos and application thereof

An insecticidal composition, the technology of tolafenac, applied in the field of pesticides, can solve the problems of the decline in the effect of pest control, the problems of the insecticidal composition of tolafenac and profenofos, etc. have not been found, so as to reduce the labor for prevention and control and overcome the resistance of pests. The effect of reducing the cost of medicinal properties, production and use

Inactive Publication Date: 2013-07-03
NANJING HUAZHOU PHARMA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] However, the resistance of diamondback moth, cotton bollworm and thrips is gradually increasing under the current long-term application conditions, and the effect of single-dose pesticides on pest control is gradually decreasing.
The inventor found through research that the synergistic compounding of pesticides is an effective measure to expand the control spectrum and improve the control effect. So far, no insecticidal composition related to pyrenpyrad and profenofos has been found.

Method used

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  • Insecticidal composition containing tolfenpyradn and profenofos and application thereof
  • Insecticidal composition containing tolfenpyradn and profenofos and application thereof
  • Insecticidal composition containing tolfenpyradn and profenofos and application thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Fenpyran and profenofos were weighed and prepared according to different proportions by conventional preparation methods to prepare tonenpyrad and profenofos emulsifiable concentrate with a weight percentage of main active ingredients of 30%. See Tables 1 and 2 for specific ratios.

[0022] Indoor synergistic bioassay was carried out by dipping method, the resistant Plutella xylostella was selected as the target pest, each treatment was repeated 3 times, and 60 heads were treated at each concentration, and the toxicological regression equation and lethal medium of each pesticide resistant Plutella xylostella were calculated by the probability value method. Concentration LC 50 , with LC 50 The co-toxicity coefficient was calculated according to Sun Yunpei method, and the results are shown in Table 1:

[0023] Table 1 Toxicity determination of the compound and single agent of pyrofenpyr and profenofos against resistant Plutella xylostella

[0024]

[0025] It can be...

Embodiment 2

[0032] Weigh 2g of pyrenpyrid, 18g of profenofos, 6g of calcium dodecylbenzenesulfonate, 3g of phenylethylphenol polyoxyethylene ether phosphate, 33g of agricultural milk # 2g, 1g of alkylphenol polyoxyethylene ether, 10g of cyclohexanone, add water to 100g. Put the above raw materials into a mixing tank according to the conventional method for preparing microemulsions, and mix them to form a tonamiprofen-profenofos microemulsion with a main active ingredient of 20% by weight.

[0033] Embodiment 2 is carried out to control vegetable diamondback moth drug effect test, contrast agent is 40% profenofos EC (emulsifiable concentrate) and 15% tolfenpyrad EC, dilutes according to the dilution factor in table 3, checks 3 days, 7 days after the medicine Day, 14 days and 28 days results, the processing results are shown in Table 3:

[0034] Table 3: Field test results of the compound pyrofen-profenon on Plutella xylostella

[0035]

[0036]

[0037] The results of field efficac...

Embodiment 3

[0044] Weigh 5g pyrenpyrrole, 50g profenofos, 3g phenethylphenol polyoxyethylene ether phosphate, agricultural milk 33 # 2g, 1g of alkylphenol polyoxyethylene ether, 13g of xylene, add water to 100g. The above raw materials are put into a mixing tank according to the conventional method for preparing water-based emulsions and mixed at high speed to form a tonamiprofen-profenofos water-based emulsion with a main active ingredient of 55% by weight.

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Abstract

The invention belongs to a pesticide field, and discloses an insecticidal composition containing tolfenpyradn and profenofos and applications thereof. Tolfenpyradn and profenofos are used as main effective components of the insecticidal composition, wherein the weight ratio of tolfenpyradn to profenofos is 0.1-80:0.5-80. The insecticidal composition has high synergic effect, overcomes and delays insecticide resistance of pests, has advantages of fast insecticidal speed, long persistent period and low cost, and has a higher obvious control effect than a single dose thereof does. The insecticidal composition of the invention is used for controlling Lepidoptera, homoptera, thysanoptera or mite pests, particularly lepidoptera diamondback moth, cotton bollworm, beet armyworm, thrips and mite pests, and has a higher obvious control effect than a single dose thereof does.

Description

technical field [0001] The invention belongs to the field of pesticides, and in particular relates to an insecticidal composition containing tolfenpyrad and profenofos and its application. 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 type of pyrazole heter...

Claims

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Application Information

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IPC IPC(8): A01N57/14A01N43/56A01P7/04
Inventor 陈文明邢平郭崇友沈海峰乔璐曼
Owner NANJING HUAZHOU PHARMA
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