摘要
通过调查、观测,了解了落叶松毛虫的生物生态学特性及在勃利县的分布状况及特征,对该害虫进行了预测预报研究,得出食叶量与发生量之间的关系公式y=21893x-43.213(R2=0.9999),使用绿色微雷进行树干涂环法进行了防治,防治成本低,效果达98%以上。
Through investigations and observations, bio-ecological characteristics of Dendrolimus superans, conditon distribu- tion ＆ characteristics in Boli county were known;this pest was conducted predicting and forecasting study. Result shows that： the relation formula between leaf consumption ＆ occurrence amount is y = 21 893x - 43. 213（R^2 = 0.999 9） ;with insecticidal ring on trunk by cypermethrin to control,control cost is low and the effect reaches above 98%
出处
《防护林科技》
2009年第6期30-31,45,共3页
Protection Forest Science and Technology
关键词
落叶松毛虫
预测预报
防治
Dendrolimus superans
prediction
control
