摘要
松瘿小卷蛾在黑龙江省２年发生１代，跨３个年度，两次以幼虫在被害部位蛀道中越冬。该虫的发生，林缘较林内重，阳坡较阴坡重，树冠下部较树冠上部重。防治时间应在落叶松幼树期间及松瘿小卷蛾的初龄阶段，防治方法以涂干法效果较好，药剂以具有内吸作用的８０％敌敌畏和４０％乐果１０倍液为最佳。
Laspeyresia zebeana has one generation in two years through tree years.The larva of Laspeyresia zebeana overwinters in the cavity of damased site.The occurence of Laspeyresia zebeana is seriously in forest edge, south slope and lower crown than that of in the forest, north slope and above crown.The best spraying time is in the sapling stage of larix and the larval instar.The control method of brushing step is effective than spraying gall.The organic chemicals e g 80% DDVP and 40% Rogor with ten times solution are of more efficent in control the pest.
出处
《林业科技》
北大核心
1999年第4期23-26,共4页
Forestry Science & Technology
关键词
松瘿小卷蛾
生物学特性
防治技术
Laspeyresia zebeana
Biological characteristics
Control technique
