蚌壳虫,俗称蚌虾,分圆蚌虾和狭蚌虾,节肢动物门甲壳纲介形目,雌雄异体。蚌壳虫在池塘大量出现时,消耗水中的溶氧,争夺水中的养料,影响幼鱼的正常摄食和生长,有时还可能引起泛池。此外,蚌壳虫与鱼苗混杂在一起,影响了鱼苗的销售。2005年4月27曰至5月1日,我们采用不同浓度的90%晶体敌百虫和快杀一号对蚌壳虫进行杀灭试验,并进行相应安全浓度测定。依试验结果于2005年5月2日至5月5目进行生产 Clam shell worms, commonly known as clam shrimp, sub-clam clam shrimp and narrow clam shrimp, arthropod door crustacea mesophyll, dioecious. When a large number of clams and worms appear in ponds, consuming dissolved oxygen in water competes for nourishment in water and affects the normal feeding and growth of larvae, sometimes causing pan-pooling. In addition, clam shellfish and fry mixed together, affecting the fry sales. April 27, 2005 to May 1, 2005, we used different concentrations of 90% crystal trichlorfon and Kill No. 1 to kill clam shellworm, and the corresponding safety concentration determination. According to the test results in May 2, 2005 to May 5 production