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目的了解客轮蟑螂栖息活动场所,探索灭蟑的有效方法。方法目测调查客轮上蟑螂的栖息活动场所,并用1%晔康杀蟑胶饵灭蟑,1个月后目测法观察灭效,3、4月下旬采用粘捕法各调查一次蟑螂密度。结果客轮蟑螂种类以德国小蠊为主,越冬栖息场所主要在冰柜(箱)压缩机附近、电热开水炉附近橱柜等温暖、离食物较近的隐蔽场所;使用1%晔康杀蟑胶饵1~2 g/m2施药处理1个月后,控制组阳性率下降了94.73%,平均密度下降了67.79%;次年3月下旬相关密度指数(RPI)为2.24;4月下旬为19.64。结论冬季在德国小蠊栖息活动场所使用1%晔康杀蟑胶饵具有较好的灭效,并能明显减缓次年春季德国小蠊密度上升速度。
Objective To understand the habitat of ro-ro passenger rides and to explore effective methods for eliminating cockroaches. Methods Visually investigate the habitat of cockroaches on passenger ships and eliminate cockroaches with 1% Yekang kill cockroach gel. After 1 month, the cockroach density was observed by visual observation. In March and April, the density of cockroaches was investigated by sticky catching method. Results The species of cockroaches in passenger ships were dominated by German cockroaches. The winter habitats were mainly in the vicinity of compressors of freezer (box), cabinets near electric hot water boilers and other hidden places close to the food. Using 1% After 2 months, the positive rate of the control group decreased by 94.73% and the average density decreased by 67.79% after 1 month application of ~ 2 g / m2. The relative density index (RPI) was 2.24 in late March and 19.64 in late April. Conclusion The application of 1% Yekang kill cockroach gel in the habitat of German Cockroach in winter has a good effect and can obviously slow down the density increase of German cockroach in the next spring.