磷化铝、溴敌隆毒饵对达乌尔黄鼠杀灭效果观察

Observation of the killing effect of aluminium phosphide and bromadiolone on Spermophilus dauricus

目的观察磷化铝、溴敌隆毒饵对达乌尔黄鼠的杀灭效果,并对磷化铝、溴敌隆毒饵的灭鼠效果进行对比。方法堵洞查盗法。试验前,先对试验区内的所有鼠洞进行堵洞,第2天计算有效洞,按有效洞进行投药,并在样方与样方之间、样方周围同时设保护带。结果磷化铝每月的杀灭效果均较好,校正灭效率均>90%;0.005%溴敌隆毒饵在5、6月杀灭效果较好,校正灭效率>90%,7-9月效果一般,校正灭效率<75%。结论在达乌尔黄鼠活动季节用磷化铝进行灭鼠均能起到很好的效果,而0.005%溴敌隆毒饵只在5-6月灭鼠效果好。

Objective To evaluate the killing effect of aluminum phosphide and bromadiolone bait on Spermophilus dauricus,and compare the two agents in terms of their killing effect on rodents. Methods All rat holes in the experimental area were plugged before the experiment. Based on calculation of the effective holes the next day,rodentcidal agents were put in the holes,with protection zones set up between and around each of the plots. Results The killing effect of aluminum phosphide was good each month of the study,with maximum corrected efficacy rate greater than 90%. The killing effect of 0.005% bromadiolone bait was better in May to June than in July to September,with the corrected efficacy rates being more than 90% and less than 75%,respectively. Conclusion Aluminum phosphide has a strong killing effect on S. dauricus the entire active season,while 0.005% bromadiolone bait shows good efficacy against the rodent only in May and June.