论文部分内容阅读
草履蚧Drosicha corpulenta(Kuwana)属同翅目,蚧科,又名草鞋介壳虫,主要为害核桃、柿子、梨、苹果、红果、海棠、黑枣、香椿、皂角、花椒、臭椿、柏、榆和洋槐等14种树种,至今已有十多年的历史。据1983和1984年2、3月多次调查,全区有12个公社162个大队受草履蚧为害,受害最严重的有青白口、担礼、军庄、小园和鲁家滩等大队。在上述各队分别选点调查150株核桃树,发现在近地面1.5米高的树干基部每平方厘米有若虫10-20
Drosicha corpulenta (Kuwana) is a Homoptera, a family of grass scales, also known as sand grass scale insects, mainly harmful to walnuts, persimmons, pears, apples, red fruit, crabapple, black date, toon, savory, pepper, Ailanthus, cypress, elm and Acacia and other 14 kinds of trees, has been more than 10 years of history. According to repeated investigations conducted in 1983 and 1984 in February and March 1984, a total of 162 brigades of 12 communes in the region were harmed by grasshoppers and the hardest hit were brigade of Qingbaikou, Daoli, Junzhuang, Xiaoyuan and Lujiatan. In each of the above teams were selected points survey of 150 walnut trees, found 1.5 meters high near the ground at the base of the trunk nymphs per square centimeter 10-20