论文部分内容阅读
黄守瓜Aulacophora femoralis chinensis Weise,是瓜类的主要害虫,福建各地发生甚为普遍。在福州地区一年发生两代,于11月下旬以成虫在向阳、避风场所匿伏越冬,翌年4月中下旬为活动盛期。成虫4、5月为害瓜类幼株,幼虫6、7月为害瓜类根部,均甚严重。成虫在中午前后最为活动,它嗜食幼嫩组织。幼虫仅食瓜类,向土壤灌水能驱使向表土上移。防治成虫,喷用敌百虫乳剂1000倍液、E605 3000倍液、乐果2000倍液、砒酸铅200倍液、雷公藤根皮20倍浸出液及80筛度的根皮粉,防治效果达85.7—100%。防治幼虫,可用E605加乐果混合液3000倍、敌百虫1000倍液、鱼藤精1000倍液、烟叶30倍浸出液淋浇根部土壤,防治效果可达79.7—100%。
Aulacophora femoralis chinensis Weise, a major pest of melons, is endemic in various parts of Fujian. Occurred in Fuzhou area two generations a year in late November to adults in the sunny, sheltered sheltered winter, the middle of the following year in mid-April for the peak activity. Adults April and May damage melon young plants, larvae 6, July harmful melons root, are very serious. Adults at noon before and after the most active, it eat young tissue. Larvae only eat melons, irrigation to the soil can drive up to the topsoil. Prevention and treatment of adult insects, spraying 1000 times the liquid trichlorfon emulsion, E605 3000 times solution, dimethoate 2000 times, 200 times lead 砒 lead acid, Tripterygium root bark 20 times leaching solution and 80 degrees of root bark powder, control effect of 85.7- 100%. Prevention and control of larvae, available E605 plus dimethoate mixture 3000 times, trichlorfon 1000 times, 1000 times the liquid rattan, tobacco leaf 30 times the leaching solution poured root soil, control effect of up to 79.7-100%.