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本文对上海市区35个生产车间的蟑螂侵害率进行调查,观察到生产性车间有黑胸大蠊及美洲大蠊两种,侵害率达58.85%。在20个有蟑螂的车间内都有黑胸大蠊栖息,平均密度10.65只/m~2;而美洲大蠊仅见于8个车间,聚集性较强,平均密度达38.50只/m~2。对较干燥车间或地下室用1%乙酰甲胺磷糖水毒杀蟑螂,24h杀灭率达95.89%。
In this paper, the cockroach infestation rate of 35 production workshops in Shanghai urban area was investigated. It was observed that there were two kinds of cockroaches in the production workshop and two cockroaches in the United States, with the rate of 58.85%. Black cockroach was found in 20 cockroaches’ plants, with an average density of 10.65 / m 2. However, American cockroaches were found in only 8 workshops with a strong aggregation with an average density of 38.50 / m 2. For more dry workshop or basement with 1% acephate to kill cockroaches, 24h kill rate reached 95.89%.