远洋船蟑螂密度调查及其杀灭效果观察

The density monitor and efficacy of controlling cockroaches on ocean-going ships

目的了解远洋船上蟑螂种群、密度,观察套餐法在远洋船上杀灭蟑螂的效果。方法用粘捕法进行蟑螂密度调查,对粘捕到的蟑螂进行种类鉴定,采用套餐法对远洋船上蟑螂进行现场杀灭试验。结果甲、乙两船饮食场所的蟑螂密度分别为1.06和2.39只/(张.夜);蟑螂的优势种群为德国小蠊;投药后1周蟑螂密度下降率为87.03%,3个月后蟑螂密度下降率达94.14%。结论远洋船上采用套餐法灭蟑值得推广。

Objective To monitor the density,discriminate the species and observe efficacy of controlling cockroaches using a set of insecticides on two ocean-going ships.Methods Observing the density by the method of adhibiting,then making a discriminationg for its pecies.Using a set of insecticides which were composed of granular bait and gel bait to decrease the density of cockroaches.Results The density of cockroaches were 1.06 and 2.39 pieces per piece per night respectively,all the cockroaches adhibited were Blattella germanica.After using insecticides for seven days,the average density of cockroaches declined by 87.03%.The density declined by 94.14% after three months.Conclusion The methed of using a set of insecticides could get an ideal effect against cockroaches,which is worth popularizing on ships.