摘要
对梨树主要害虫梨瘿蚊（Ｄｉｐｌｏｓｉｓｓｐ．）于１９９０～１９９２年开始进行研究，结果表明：化学防治以１５％杀灭菊脂２５００倍最好，死亡率达９０．４％，人工防冶采用冬季土地深翻（６ｃｍ以上），夏季入土化蛹盛期进行中耕晒土，能消灭大部分老熟幼虫与黄蛹，进行生物防冶的主要天敌是瘿蚊广腹细蜂，其次捕食性蜘蛛，瓢虫等也能有效控制梨瘿蚊发生。
Study on biological properties of Diplosis sp. showed that this insect had 3～4 generations in a year. Mean time for adult. egg. Iarvae. pupa was respectively 30 h. 3 day. 12 days. 15 days. Control techniques tests showed that 15% of 25oofold fenvalerate was the best one for control,mortality rate of the insect was 90.4%. Other control techniques were presentedin the paper.
出处
《浙江林业科技》
北大核心
1994年第4期40-42,共3页
Journal of Zhejiang Forestry Science and Technology
