杀灭菊酯在对虾养殖清池中的使用

EXPERIMENT ON USING FENVALERATE TO CLEAN PRAWN CULTURE PONDS

在对虾养殖池使用清池的药物有好几种,通常杀死杂虾类,多采用漂白粉,但用量大且污染池底。南海沿海养虾池中白虾(Palaemon sp.)繁殖量大,群众为了杀死它,多采用敌百虫清池杀之,虽然效果较好,但是用量较大,余毒残留时间较长,所以很迫切需要研究杀除白虾等野杂虾有效的药物。笔者试用杀灭菊酯(Fenvalerate)杀死野杂虾类、锯缘青蟹及鱼类。

This article tells of the experiments on using fenvalerate to clean prawn culture ponds. The experiments fall into two categories: one is to add mud sands into the container with fenvalerate, the other is not to add sands. The result of experiments indicates the fenvalerate density to kill shrimps is 0.1-0.3×10-6, and to kill Scylla Serrate is 2-3×10-6. Fish has a strong resistance to fenvalerate, so it dies only when the density reaches to 30×10-6. The cost of using fenvalerate is 7. 5 times lower than that of using dipterex. Using a small quantity, you and clean the pond thoroughly, it is easy to transport, carry and worth using.