烟台市2种毒饵灭鼠效果的观察

Observation of Deratization Effect of 2 Kinds of Poison Bait

目的了解烟台市配制的第1代抗凝血灭鼠剂杀鼠迷毒饵和第2代抗凝血灭鼠剂溴敌隆的灭鼠效果。方法统一时间、统一方法,实施饱和投毒法。投毒后的第2、3天查补,吃多少补多少,吃光加倍投,每间房(15 m2)投毒饵2堆,每堆10g。室外在鼠经常出没的墙根每5 m1堆。结果盗食率2组均以投毒后第2天最高,第3天最低。溴敌隆和杀鼠迷2种毒饵的校正灭鼠率分别达到了81.00%和91.09%。结论2种毒饵盗食率及灭鼠率均较高,特别是杀鼠迷,可作为城乡大面积灭鼠时推广使用的鼠药。该市鼠类是否对溴敌隆产生抗药性需引起注意。

[ Objective] To understand the deratization effect of 1 st generation anticoagulant rodenticides Coumatetralyl and 2nd generation anticoagulant rodenticides Bromadiolone prepared in Yantai City. [ Methods] In the same time and by using the same method, saturation method was adopted in poisoning. After 2 or 3 days, checking up the poison baits, the consumption volume was supplied. 2 stacks of poison baits were placed in 1 room （ 15 m^2 } , lOg for each stack. Poison baits were placed 1 stack for every 5m along the foot of wall where frequented by rats. [ Results] The maximum of stealing food rates of the 2 groups appeared on the 2nd day, and the minimum appeared on the 3rd day. The deratization rate of Bromadiolone and Coumatetralyl was 81.00% and 91.09% respectively. [ Conclusion ] The stealing food rate and deratization rate of 2 poison baits were high, especially the Coumatetralyl can be popularized for large-scale deratization. It is necessary to investigate whether the drug-resistance of Bromadiolone exist among local rats.