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油菜叶甲Entomoscelisorientalis Motschulsky(又称芸苔叶甲,鞘翅目,叶甲科)。此虫近年危害油菜日趋严重,为寻找有效的防治途径,我们从1979—1982年与密县农技站协作,对此虫进行了系统观察,现将结果整理提供各地参考。 分布与危害 油菜叶甲是我国北方油菜产区的一种重要害虫,据通讯调查,冀、晋、豫、皖、陕、甘、辽等七省均有分布。河南省开封、洛阳、安阳、新乡等四个地区和郑州市发生较严重。受害作物主要为十字花科的油菜、芥菜、白菜、
Entomoscelisorientalis Motschulsky (aka Brassica oleracea, Coleoptera, Pholiota). In recent years, this insect has become more and more harmful to rapeseed. In order to find an effective way of prevention and treatment, from 1979 to 1982, we collaborated with Mi County Agricultural Technology Station to systematically observe the pests. The results are now compiled and provided for reference. Distribution and Harmness Rape A leaf is an important pest in the rapeseed producing area in northern China. According to the investigation of communication, there are distributions in seven provinces including Hebei, Shanxi, Henan, Anhui, Shaanxi, Gansu and Liaoning. Henan Kaifeng, Luoyang, Anyang, Xinxiang and other four regions and Zhengzhou City, the more serious. The main crops are cruciferous rape, mustard, cabbage,