Composite bactericidal microemulsion containing triadimefon and ethylicin and preparation method thereof

Abstract

The invention discloses composite bactericidal microemulsion containing triadimefon and ethylicin, which consists of the following components in percentage by weight: 5 to 15 percent of triadimefon, 1to 5 percent of ethylicin, 5 to 25 percent of organic solvent, 15 to 25 percent of primary surfactant, 3 to 10 percent of cosurfactant, and the balance of water. The invention also discloses a methodfor preparing the microemulsion. The microemulsion is apparently transparent or almost transparent uniform liquid, has no sediments and floating oil after being diluted, has excellent cold / hot storage stability and ageing stability, high transfer efficiency, high flash point, safe production, transportation, storage and usage, less environmental pollution, low production and use cost, and high bactericidal effect.

Description

technical field [0001] The invention belongs to the technical field of pesticides, and in particular relates to a compound bactericidal microemulsion containing triadimefon and acetoallicin and a preparation method thereof. Background technique [0002] Triadimefon (triadimefon), also known as Fenxiu Ning, triazole dimethyl ketone, chlorothalone, Bailitong and so on. The pure product is colorless crystal with special smell, melting point 82.3℃, slightly soluble in water at 20℃, soluble in most organic solvents. The original powder is a white to light yellow solid with a melting point greater than 70°C and is relatively stable under acidic and alkaline conditions. It has the characteristics of high efficiency, broad spectrum, low residue, long residual period and strong systemic absorption. It is easily absorbed by plants and conducted in the body. It has the functions of protection, treatment, eradication and fumigation. It is a low toxicity fungicide. Rat Acute Oral LD...

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Problems solved by technology

[0004] At present, the main dosage forms of triadimefon and acetocilin preparations are emulsifiable concentrates and wettable powders. The production process of emulsifiable concentrates needs to consume a large amount of toxic and flammable organic solvents, which is not conducive to safe production, transportation and storage; Volatilization can be harmful to the environment

The disadvantages of wettable powder in the process of use are that it is easy to cause the powder to fly when preparing the spray liquid, causing harm to the operator, and the remaining powder in the packaging bag pollutes the environment

In addition, during the spraying process of the emulsifiable pesticide with oil as the medium, the pesticide is dispersed in the aqueous solution in the form of small emulsifiable droplets. After spraying on the leaves of crops, it is not conducive to the wetting of the leaves, thus affecting the efficacy. , the efficacy of wettable powder is also affected by the fineness of the powder

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