安徽南陵县家发乡黄绪刚等 问:早地作物常被金龟子危害,造成作物减产品质下降,如何防治? 湖北省农业科学院植保所朱文达 答;金龟子有100余种,多数一年一代或两年一代。4月中旬成虫开始出土,有趋光性,一遇惊动即假死落地,昼伏夜出,尤以晚上8～11时活动最盛。成虫喜在大豆、花生、甘薯地产卵。在土壤比较湿润疏松,背风向阳的地方,幼虫生长发育良好。成虫取食枝叶,尤其喜欢吃花生、大 Huang Xiaogang, Jiafa Township, Nanling County, Anhui Province, etc. Q: Crops are often harmed by scarabs early, leading to a drop in the quality of crops. How to prevent and cure this problem? There are more than 100 species of chafer, most of them in one generation or two Generation In mid-April, the adults started unearthed and became phototactic. In the event of an anger, they were suspended for a long time and were nocturnal, especially at 8-11 in the evening. Adults like soybeans, peanuts, sweet potato land eggs. Wet and loose soil in the more leeward sunny place, larvae grow well. Adults eat leaves, especially like to eat peanuts, large