我场位于里下河水网地区,多年来子螺(田螺的幼螺)一直是影响鱼种生产的主要天敌,由于子螺的大量繁殖,肥塘水质变瘦,同时竞饲大量饵料,严重影响了鱼种的培育。我们以往应用茶子饼清塘,成本较大,而灭螺较果尚不十分理想;五氯酚钠灭螺效果可靠,但来源比较困难。为此,我场对灭螺的其他药物进行了试验,我们发现敌 My field is located in the area of ​​Lixia River. For many years, snails (snails) have been the main natural enemies that affect the production of fish species. Due to the large population of snails, the water quality of the fertigation ponds becomes thinner and the feeding of large amounts of foodstuffs is seriously affected The cultivation of fish species. In the past, we used tea cake to clarify ponds, and the cost was relatively high. However, snail molluscs were not yet very satisfactory. The efficacy of pentachlorophenol sodium snail was reliable but the sources were rather difficult. To this end, my field of other drugs snail test, we found the enemy