Molluscicide LDS sustained-release granules and preparation method thereof

Abstract

The invention belongs to the technical field of pesticides, and particularly relates to molluscicide LDS sustained-release granules. The molluscicide LDS sustained-release granules comprise LDS and auxiliary additives and comprise components in parts by weight as follows: 5-50 parts of the LDS and the balance of the auxiliary additives, wherein the auxiliary additives comprise 0.05-1 part of a surfactant, 0-10 parts of a binder, 0.2-1 part of an antifoaming agent, 0.2-10 parts of a lubricant and 30-90 parts of carriers. The LDS sustained-release granules are good in drug stability, are higher in adhesive force and rain wash resistance after scattered, have the characteristics of sustained and slow release and good effect and still have a better control effect after applied for 14 days, repeated usage is avoided, pollution is reduced, the usage cost is reduced, and the molluscicidal effect is improved.

Description

technical field [0001] The invention belongs to the technical field of pesticides, and in particular relates to a slow-release granule of molluscicide salicylamine chloride and a preparation method thereof. Background technique [0002] Schistosomiasis is a major infectious disease that seriously endangers the health of our people, and oncomelania is the only intermediate host of schistosomiasis. Eliminating oncomelania is an effective method to prevent and control schistosomiasis. The Chinese patent with publication number CN1958565A provides a new molluscicide quinone 4'-nitro-2', 5-dichlorosalicylanilide sodium (hereinafter referred to as chlorosalicylamine), which is Odorless and tasteless dark brown solid powder, soluble in methanol, ethanol, acetone, ethyl acetate, etc., slightly soluble in water, almost insoluble in ether, chemically stable at room temperature. Its chemical formula is C 13 h 7 N 2 Cl 2 o 4 Na, relative molecular mass M w =349.1, the structural ...

AI Technical Summary

Problems solved by technology

[0004] Since chlorinated salicylamine is in a powder state, direct spraying can easily cause the powder to scatter and the drug will be consumed, and inhalation by the applicator will cause certain harm, especially in the environment where the oncomelania breeding ground is short of water, the powder can easily flow away with the wind, resulting in waste of the drug

In order to prevent problems such as powder pollution, the patent CN103583513 discloses a suspending agent with chlorinated salicylamine as the active ingredient and water as the continuous phase, but it needs to use a large amount of water for dilution and spraying in water-deficient areas, so its application restricted

In addition, chlorinated salicylamine powder and suspension have a short duration of action, requiring repeated application, which consumes manpower, material resources and other resources, resulting in a corresponding increase in the cost of mollusc control

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