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Composite insecticidal composition and preparation method thereof

An insecticidal composition and a technology for the composition, which are applied in the fields of botanical equipment and methods, insecticides, acaricides, etc., 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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  • Composite insecticidal composition and preparation method thereof
  • Composite insecticidal composition and preparation method thereof
  • Composite insecticidal composition and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Prepared with 40% chlorfenapyr·furafenozide suspension concentrate, the distribution ratio of each component is by weight:

[0026]

[0027] The preparation process is as follows: high-speed disperse chlorfenapyr and furantenozide, phenylethylphenol polyoxyethylene ether, alkylphenol polyoxyethylene ether, and part of water according to the stated ratio for 30 minutes, and then sand mill The machine grinds the mixed material to a particle size of less than 5um, then puts it in the post-mixing kettle, adds ethylene glycol, citric acid, xanthan gum, etc. and stirs evenly to obtain the finished product.

experiment example 1

[0029] The method of Example 1 was used to weigh and prepare a tetrafenapyr-furafenozide suspension concentrate with a total active ingredient weight percentage of 30% by using the process of Example 1. See the table below for specific ratios.

[0030] 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 .

[0031] Actual toxicity index ATI(AB)=EC50 of A / EC50 of AB*100

[0032] Theoretical toxicity index TTI(AB)=TI(A)*A percentage in the mixture +TI(B)*B percentage in the mixture Co-t...

experiment example 2

[0039] 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.

[0040] The results are shown in the table below:

[0041] Table 2 Toxicity test results of compound and single agent of tetraprole and furafenozide against resistant cotton bollworm

[0042] Test drug

[0043] It can be seen from Table 2 that the co-toxicity coefficients of tetrafenapyr and furanozide are both greater than 120 within the proportioning range, indicating that both have synergistic effects within this range.

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Abstract

The invention discloses a composite insecticidal composition and a preparation method thereof. The composite insecticidal composition comprises flufiprole and fufenozide, wherein the weight ratio of flufiprole to fufenozide is (1-50) to (50-1). The composition is prepared into various pesticide formulations through the addition of an emulgator, a cosolvent, an antifreezing agent, a defoamer, a thickener, a stabilizer, a PH regulator and the like, but an environmental-friendly water-based suspending agent preparation is preferably selected. The composition has a synergistic interaction effect in the insecticidal efficacy, and can delay pest resistance to insecticides. The composite insecticidal composition can prevent and control various injurious insects such as plant hoppers, whiteflies, aphides, thrips, diamond back moths, spodoptera exigua and mites on crops.

Description

technical field [0001] The invention relates to the technical field of pesticide preparations, in particular to a compound insecticidal composition and a preparation method thereof. Background technique [0002] Butyrole: English name: Flufiprole, chemical name: 3-cyano-5-methallylamino-1-(2,6-dichloro-4-trifluoromethylphenyl)-4-trifluoro Methylsulfinylpyrazole. Molecular formula: C16H10Cl2F6N4OS. [0003] White powder, melting point: 172~174℃. Solubility at 25°C is: water 0.02g / L, ethyl acetate 260.02g / L. It is stable under acid and alkali at room temperature. [0004] This compound is a phenylpyrazole insecticide created by Dalian Ruize Pesticide Co., Ltd. Its insecticidal mechanism is novel, unique, and highly active. It mainly hinders the chloride metabolism controlled by insect γ-aminobutyric acid, and has stomach toxicity. , contact killing and certain systemic effects, can be applied to rice, cotton, vegetables, corn, fruit trees and other crops to control larvae...

Claims

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Application Information

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IPC IPC(8): A01N47/02A01P7/02A01P7/04A01N43/12
Inventor 孙素一
Owner 孙素一
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