Prothioconazole and tebuconazole compound suspending agent and preparing method thereof

Abstract

A prothioconazole and tebuconazole compound suspending agent and a preparing method thereof relate to the technical field of prevention and control of scab of wheat. The suspending agent is prepared from 20 parts of prothioconazole, 12 parts of tebuconazole, 3 parts of fatty alcohol-polyoxyethylene ether, 5 parts of cinnamenyl phenol polyoxyethylene ether, 0.5 part of xanthan gum, 0.3 part of sodium benzoate, 0.5 part of defoaming agent and 58.7 parts of deionized water. Raw materials are pumped into a preparing kettle and mixed by stirring, are primarily ground by a colloid mill, are then fine-ground by a sand mill, are subjected to sampling analysis, are filtered after being qualified, metered and packed and put in store. The 32% compound prothioconazole and tebuconazole compound suspending agent is mixed by using a proportion of 5:3, an obvious synergic action range is achieved, and a preparation mixed according to other proportions cannot achieve the obvious synergic action range.

Description

technical field [0001] The invention relates to the technical field of prevention and treatment of wheat scab, in particular to a prothioconazole and tebuconazole compound suspension and a preparation method thereof. Background technique [0002] At present, the existing fungicidal composition for the prevention and treatment of wheat head blight, for example, the Chinese patent "CN1899040A" discloses a "method for preventing and treating wheat head blight with cyclostrobin and tebuconazole", in which the effective active ingredient It is cyclostrobin and tebuconazole, and the ratio of the two is 1-40:1. Another Chinese patent "CN104686529A" discloses a "combination of agents for preventing and treating wheat scab and its application", wherein the effective active ingredients are tebuconazole and salicylamine, and the ratio of the two is 1:4~ 4:1. [0003] The inventor has verified through long-term tests that the above-mentioned several bactericidal compositions mainly ha...

AI Technical Summary

Problems solved by technology

For example, the prepared suspending agent is easy to cause the product to stick, not easy to disperse and suspend in water, or block the nozzle, and precipitate in the sprayer, etc., resulting in uneven spraying and local phytotoxicity of the crops. The main reason is that the additives There are different defects in the selection of fillers

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

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