Ethofenprox and indoxacarb compound suspension agent and preparation method thereof

Abstract

An ethofenprox and indoxacarb compound suspension agent and a preparation method thereof. The invention relates to the technical field of prevention and control of cnaphalocrocis medinalis on paddy rice. The suspension agent is at least prepared from 10 parts of ethofenprox, 15 parts of indoxacarb, 3 parts of fatty alcohol-polyoxyethylene ether, 3 parts of styryl phenol polyoxyethylene ether, 0.3 parts of xanthan gum, 0.4 parts of sodium benzoate and 0.3 parts of a defoamer, wherein deionized water is added to 100 parts in total. The raw materials are all pumped into a preparation kettle and are mixed and stirred to form a mixture. The mixture is then subjected to primary grinding through a colloid mill and is finely ground in a sand mill. Sample analysis is then carried out, and if qualified, the mixture is filtered, metered and packaged and is stored in a storeroom. In a compound suspension agent being 25 mass%, the ethofenprox and the indoxacarb are blended according to the ratio of 1:1.5, and at this ratio, a significant synergistic effect range can be achieved, while the compound suspension agents in other blending ratios cannot reach the significant synergistic effect.

Description

technical field [0001] The invention relates to the technical field of rice leaf roller control, in particular to a compound suspending agent of etofenprox and indoxacarb and a preparation method thereof. Background technique [0002] At present, the existing insecticidal composition for controlling rice leaf roller, for example, Chinese patent CN103999875 A discloses a "rice leaf roller insecticide and its preparation method", the active component is composed of Suyun Composed of Chrysobacterium, Streptomyces griseus and Kangkuan, the weight ratio of the Streptomyces thuringiensis, Streptomyces grayus and Kangkuan is (1-10):(1-10):(10-1). Another Chinese patent "CN 103918674 A" discloses a "insecticide for the control of rice leaf rollers", the active ingredients are emamectin benzoate and pyriproxyfen, the weight ratio of which is 2:83, and the effective dose of emamectin benzoate Salt and pyriproxyfen with solid or liquid carrier, assistant and other additives. [0003]...

AI Technical Summary

Problems solved by technology

For example, wettable powder is easy to cause product sticking, is not easy to disperse and suspend in water, or clogs the nozzle, and causes precipitation in the sprayer, resulting in uneven spraying

[0006] 3), the problem of compounding, by carrying out toxicity test, heat storage stability test and mixing co-toxicity coefficient measurement on several specific proportions disclosed by the above-mentioned several insecticidal compositions, it is found that no obvious synergistic effect can be achieved

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