Prothioconazole- tebuconazole compounded suspending agent and preparation method thereof

Abstract

The invention provides a prothioconazole-tebuconazole compounded suspending agent and a preparation method thereof and relates to the technical field of prevention and control of wheat scab. The compounded suspending agent is at least prepared from the following components in parts by weight (100 parts in total): 20 parts of prothioconazole, 12 parts of tebuconazole, 3 parts of fatty alcohol-polyoxyethylene ether, 3 parts of styrylphenol polyoxyethylene ether, 0.3 part of xanthan gum, 0.4 part of sodium benzoate, 0.3 part of a defoaming agent and the balance of deionized water. The preparation method comprises the steps of pumping all the raw materials into a preparation kettle, mixing, stirring, carrying out primary grinding by virtue of a colloid mill, carrying out fine grinding by virtue of a sand mill, carrying out sampling and analysis, and after the sample is qualified, carrying out filtration, measurement, packaging and warehousing. According to the preparation method, the compounded suspending agent including 32% of prothioconazole and tebuconazole in a ratio of 5 to 3 has the effect of effectively expanding the action range, but preparations blended in other proportions do not have the effect.

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 compositions for preventing and treating wheat scab, for example, Chinese patent CN 104106580 A discloses a "composite fungicide for preventing and treating wheat scab", which uses albendazole and tebuconazole as base materials , prepared according to the mass ratio of albendazole and tebuconazole in a ratio of 7:1 to 1:7. The preferred mass ratio of albendazole to tebuconazole is 1:2. Albimazole is the original fungicide with a mass fraction of 97%, and tebuconazole is a fungicide with a mass fraction of 98.43%. Another Chinese patent CN 104686529 A discloses a "combination of agents for preventing and treating wheat scab and its application", the active ingredient is a compound composition of ...

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, through the toxicity test, heat storage stability test and the determination of the mixed co-toxicity coefficient of several specific proportions disclosed by the above-mentioned several bactericidal compositions, it was found that no obvious synergistic effect could be achieved

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