长江客轮蟑螂及其防治的研究

A STUDY ON COCKROACH AND ITS CONTROL ON STEAM-SHIPS IN THE YANGTZE RIVER

本文报道我们1987年在客轮上进行了蟑螂及其防治的研究.经初步鉴定的蟑螂有三种;德国小蠊为优势种,占96.36±2.868%,黑胸大蠊和美洲大蠊分别仅占1.33±0.679%和2.32±2.492%.同时发现5种天敌.蟑螂的种群密度,成若虫为3.11头/m^2,卵鞘为0.24个/m^2.其中德国小蠊成若虫为3.01头/m^2,卵鞘为0,23个/m^2.通过全年喷洒5次DDVP为主的综合防治,对成若虫密度的防效为87.55%.卵鞘为76.47%.对侵害率的防效仅达56.71%.药剂防治成本平均每艘为185.2元.

This paper reports that we studied cockroach and its control on travelling steam-ships in 1987.After a preliminary appraisal of cockroach there are three specics;Biattella germanica L.is species of preponderance, make up 96.36%; Periplaneta fuliginosa serv.and P. americana L. respectively make up 1.33% and 2.32%.At the same time five species of natural enemy were found.The density of species group,adult and nymph is 3.11/m2,egg pouch is 0.24/m2.Among them German cockroach adult and nymph is 3.01/m2, egg pouch is 0.23/m2. Through yearly control with spraying insecticide of DDVP five times as major IPM, density of adult and nymph control effect is 87.55%, egg pouch is 76. 47%. Inroads percent control effect is only 56.71%. Average drug control cost is 185.2 yuanevery steam-ship.