Molluscicide for aquiculture and preparation method thereof

Abstract

The invention provides a molluscicide for aquiculture, which contains 5-80wt% of nicotinanilide sulphate or nicotinanilide hydrochloride, 1-30wt% of synergist, 9-30wt% of copper sulphate or zinc sulphate and 10-50wt% of thinner. The preparation method comprises the following steps: after respectively pulverizing the nicotinanilide sulphate or the nicotinanilide hydrochloride, the synergist, the copper sulphate or the zinc sulphate and the thinner, mixing and uniformly blending the pulverized materials to obtain the molluscicide for aquiculture. The molluscicide of the invention has the advantages of simple preparation, convenient use, quick and thorough molluscacidal effect, no harm to fishes and shrimps and no adverse effect on procreative water of crops, float grass and algae and domestic water for people and livestock, and meets the requirement of ecological environmental protection. The molluscicide prepared by the invention has low molluscacidal concentration, reduces the molluscacidal cost, and is an ideal molluscicide for aquiculture.

Description

technical field [0001] The invention relates to a synergistic aquaculture medicine-snail-killing medicine and a preparation method thereof. Background technique [0002] Killing molluscs in aquaculture areas is not only an important measure to control schistosomiasis infection, but also an important means to increase aquaculture production, prevent, control and treat aquatic animal pests and diseases, and improve the quality of aquaculture water. [0003] The most important method of killing molluscs is to spray drugs to kill them. In the aquaculture industry, the following drugs are commonly used to kill snails: chemical drugs, such as sodium pentachlorophenate, niclosamide, nicotinamide, etc., generally use their unilateral preparations; plant or plant extract drugs, such as Tea seed cake, saponin extract, etc. However, these drugs have the following disadvantages respectively: [0004] 1. The price is expensive, such as the wettable powder of ethanolammonium salt of ni...

AI Technical Summary

Problems solved by technology

[0004] 1. The price is expensive, such as the wettable powder of ethanolammonium salt of niclosamide, which is difficult for fishermen to bear and is highly toxic to fish;

[0005] 2. It pollutes the environment and is highly toxic to fish, humans and livestock. It cannot be used to kill molluscs with water, such as sodium pentachlorophenate, etc.;

[0006] 3. The water solubility is poor, and the snails cannot be killed in a short time, and there is a phenomenon that the snails escape from the water surface and the snails are not completely killed, such as nicotinamide wettable powder, etc.;

[0007] 4. The amount of use is large, the poisoning effect is slow, the killing effect is not complete, and even the source of raw materials is limited

[0008] In Chinese Patent Application No. 00131254.5 Publication No. CN1313029A titled "Molluscus Killer and Its Production Method", the production process of its mollusc killer is relatively complicated, and the method of extracting mother liquor from traditional Chinese medicine must be adopted, and the comprehensive cost is higher

[0009] In Chinese Patent Application No. 03118848.6 Publication No. CN1437851A titled "Special Molluscicide for Aquaculture", the formula is simple, but the medicament used must be at a higher concentration to achieve a better molluscicide effect

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