Thifluzamide, amino-oligosaccharin and hexaconazole compound suspending agent and preparation method thereof

Abstract

A thifluzamide, amino-oligosaccharin and hexaconazole compound suspending agent and its preparation method relate to the field of pest control techniques in paddy fields. The compound suspending agent is prepared from the following ingredients, by weight, 5 parts of thifluzamide, 5 parts of amino-oligosaccharin, 10 parts of hexaconazole, 4.5 parts of fatty alcohol-polyoxyethylene ether, 7.5 parts of styrylphenol polyoxyethylene ether, 1 part of xanthan gum, 0.5 part of sodium benzoate, 1 part of organosilicon and 6.5 parts of solvent naphtha. The preparation method comprises the following steps: pumping raw materials into a preparation vessel, mixing and stirring, carrying out preliminary grinding by a colloid mill, carrying out fine grinding by a sand mill, carrying out sampling analysis, filtering after qualified, metering, packaging and warehousing. The thifluzamide, amino-oligosaccharin and hexaconazole compound suspending agent has a good effect of controlling rice sheath blight disease and rice blast. The synergistic effect of the three ingredients thifluzamide, amino-oligosaccharin and hexaconazole is realized, and an obvious synergetic effect is achieved. Meanwhile, the compound suspending agent has a double effect of prevention and treatment and has a long persistent period. According to the compound suspending agent, its bactericidal activity is performed mainly by inhibiting demethylation of sterol in pathogenic fungus so as to block biofilm formation.

Description

technical field [0001] The invention relates to the technical field of disease and pest control in paddy fields, in particular to a compound suspending agent of thiafuramide, amino oligosaccharin and hexaconazole and a preparation method thereof. Background technique [0002] At present, the existing pesticides used for the control of rice field diseases and insect pests, for example, the Chinese patent "CN 101971815 A" discloses a "combined pesticide for the prevention and treatment of rice sheath blight", in which hexaconazole and lentinan are used as active ingredients , prepared by mixing 1-30 parts of hexaconazole and 0.5-10 parts of lentinan. Another Chinese patent "CN 103222470 A" discloses a "compound pesticide for preventing and treating rice sheath blight", in which thiofluxamide and Jinggangmycin are used as active ingredients, and 0.15% to 15% of thiofluxamide and Jinggangmycin 1~50% mixed. [0003] The inventor has verified through long-term experiments that t...

AI Technical Summary

Problems solved by technology

For example, wettable powder is easy to cause product sticking, not easy to disperse and suspend in water, or block the nozzle, and cause precipitation in the sprayer, resulting in uneven spraying and easy to cause phytotoxicity in rice leaves and other parts

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

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