油菜叶(虫甲)Entomoscelis orientalis Motoschusky又叫油菜金花虫,属鞘翅目,叶(虫甲)科.近几年在我区西部几县危害异常严重,但我省过去对这一害虫研究很少,发生规律不够了解.为了探讨其发生规律和防治方法,1979-1981年我们在密县进行了系统的调查研究,基本上摸清了发生规律,找到了一些有效的防治方法.现将结果简结如下:一、分布与危害据在密县调查,此种虫害主要分布在丘陵旱薄地,1979年仅白寨、城关、岳村、平陌、 Rape leaf (insect) Entomoscelis orientalis, also known as the goldenrod Rattus Coleoptera, is a coleoptera, leaf (insect) family .In recent years in several western counties in our region, the damage is extremely serious, but in our province in the past is very pest research Less, the law of occurrence is not enough to understand .In order to explore its occurrence and prevention methods, we conducted a systematic investigation in the county from 1979 to 1981, basically found out the law of occurrence and found some effective methods of prevention and treatment. Brief summary is as follows: First, the distribution and harm According to the investigation in the county, such pests mainly in hilly dry land, in 1979 only Baizhai, Chengguan, Yuecun,