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Pesticide composition containing cyhalothrin and application of the composition

A technology of high-efficiency cyhalothrin and an insecticidal composition, which is applied in the directions of insecticides, applications, acaricides, etc., and can solve the problems of dehydration, death, and inability to complete molting of larvae.

Inactive Publication Date: 2015-03-25
孙素一
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

After the pest eats the loyal minister, it will soon have an abnormal molt reaction, stop feeding, and molt early, but cannot complete the molt due to abnormal molt, resulting in dehydration and starvation of the larvae and death

Method used

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  • Pesticide composition containing cyhalothrin and application of the composition
  • Pesticide composition containing cyhalothrin and application of the composition
  • Pesticide composition containing cyhalothrin and application of the composition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] 30% lambda-cyhalothrin · furantenozide suspension concentrate is prepared, and the distribution ratio of each component is by weight:

[0025]

[0026] The preparation process is as follows: high-speed dispersion of lambda-cyhalothrin and furafenozide, styrylphenol polyoxyethylene ether, alkylphenol polyoxyethylene ether, and part of water according to the stated ratio for 30min , Grind the mixed materials with a sand mill to a particle size below 5um, and then add ethylene glycol, citric acid, xanthan gum, etc. to the post-mixing kettle and stir evenly to obtain the finished product.

experiment example 1

[0028] Beta-cyhalothrin and furofenozide were weighed and prepared in different proportions using the process of Example 1 to prepare a suspension concentrate of lambda-cyhalothrin-furofenozide with a total active ingredient weight percentage of 30%. See the table below for specific ratios.

[0029] The indoor synergistic bioassay was carried out by the leaf dipping method, and the resistant Plutella xylostella was selected as the target pest. Each treatment was repeated 3 times, and 60 heads were treated at each concentration. Medium concentration, use the LC50 value to calculate the co-toxicity coefficient according to Sun Yunpei's method to evaluate the mixed effect, usually showing three types of effects, namely synergistic, additive and antagonistic, when the co-toxicity coefficient (CTC) is greater than 120, it has a synergistic effect .

[0030] Actual toxicity index AT I(AB)=EC50 of A / EC50 of AB*100

[0031] Theoretical toxicity index T T I (AB) = T I (A) * A percent...

experiment example 2

[0037] The indoor synergistic bioassay was carried out by the leaf soaking method, and the resistant cotton bollworm was selected as the target pest. Each treatment was repeated 3 times, and 60 heads were treated at each concentration. For medium concentration, use the LC50 value to calculate the co-toxicity coefficient according to Sun Yunpei's method to evaluate the mixed use effect.

[0038] The results are shown in the table below:

[0039] Table 2 The toxicity test results of the combination of lambda-cyhalothrin and furantenozide and single agent against resistant cotton bollworm:

[0040]

[0041] It can be seen from Table 2 that the co-toxicity coefficients of lambda-cyhalothrin and furantenozide are both greater than 120 within the proportioning range, indicating that both have synergistic effects within this range.

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PUM

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Abstract

The invention discloses a pesticide composition containing cyhalothrin and application of the composition. The composition comprises cyhalothrin (A) and furan tebufenozide (B), wherein the weight ratio of cyhalothrin to furan tebufenozide is (1-50) to (50-1). The composition is prepared into various pesticide formulations by adding components such as an emulsifier, a cosolvent, an antifreezer, a defoamer, a thickener, a stabilizer and a pH regulator, but preferably the composition is prepared into an environment-friendly water-based suspending agent preparation; the composition has a synergistic pesticide effect and can delay pesticide resistance of pests and prevent and control various pests such as delphacidae, aleyrodidae, aphides, thrips, diamondback moths, beet armyworms and mites on crops.

Description

technical field [0001] The invention relates to the technical field of pesticide preparations, in particular to an insecticidal composition containing lambda-cyhalothrin and its application. Background technique [0002] Beta-cyhalothrin is also known as cyhalothrin trifluthrin and kungfu permethrin. Chemical name: α-cyano-3-phenoxybenzyl 3-(2-chloro-3,3,3-trifluoropropenyl)-2,2-dimethylcyclopropanecarboxylate. The pure product is white solid, yellow to brown viscous oily liquid (industrial product), boiling point 187-190°C / 0.2mmHg, vapor pressure about 0.001mPa (20°C), density 1.25 (25°C), solubility in water 0.004ppb (20 ℃), soluble in acetone, dichloromethane, methanol, ether, ethyl acetate, hexane, toluene >500g / L (20℃), stored in the dark at 50℃ for 2 years without decomposing, stable under light, decomposed at 275℃ , pH7-9 decomposes slowly under light, and decomposes faster when pH>9. It is easily soluble in acetone, methanol, ethyl acetate, toluene and other...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N53/08A01N25/04A01P7/02A01P7/04A01N43/12
Inventor 孙素一
Owner 孙素一
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