4种杀蟑饵剂对德国小蠊现场杀灭效果的观察

Efficacy observation of four kinds of baits against Blattella germanica

目的观察4种杀蟑饵剂对小餐馆德国小蠊的现场杀灭效果。方法选择4种不同有效成分及剂型的市售杀蟑饵剂,采用一次投药法,将饵剂投放在德国小蠊活动的场所,利用粘捕法监测投药前后德国小蠊密度变化,评价杀灭效果。结果 4种杀蟑饵剂一次投药7 d后,小餐馆内德国小蠊密度下降率分别为:施用12%硼酸胶饵,密度下降率为66.58%;0.05%氟虫腈胶饵,密度下降率为75.82%;1.5%乙酰甲胺磷粉剂,密度下降率为32.32%;0.1%毒死蜱粉剂密度未下降。结论通过现场灭蟑观察,胶饵一次投药后对小餐馆德国小蠊杀灭效果明显高于粉剂,其中又以0.05%氟虫腈胶饵杀灭德国小蠊的效果为最佳。

Objective To observe the effect of four kinds of baits against Blattella germanica in small restaurants.Methods Choosing four kinds of baits with different active ingredients and formulations,placing baits in active field of Blattella germanica and using sticky traps to monitor cockroach density before and after the baits application and to evaluate the killing effects. Results Seven days after the baits application,the density of Blattella germanica decreased 66. 58% in restaurants treated with 12% boric acid gel baits,75. 82% with 0. 05% fipronil gel baits and 32. 32% with 1. 5% acephatebaits. 0. 1% chlorpyrifos baits held little cockroach control effect. Conclusion The effects of gel baits against Blattella germanica were significantly better than the powder formulations,0. 05% fipronil gel bait was the best of the four baits.