| 摘要: |
| 油茶尺蛾(Biston marginata Shiraki )是近年来广东省中山市阔叶混交林内出现的重要害虫。在林间，森得保原药与钙粉比例1：16、1：20、1：24和1：30的杀虫率分别为91.71%、87.28%、84.71%和81.90%。用30倍钙粉稀释的森得保粉剂防治1113.5 hm2林地的油茶尺蛾幼虫，平均虫口减退率为80.13%。 |
| 关键词: 油茶尺蛾，森得保粉剂，防治效果 |
| DOI： |
| 分类号: |
| 基金项目:中山市财政资助的中山市林业科研与推广的自立项目 |
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| Effects of Controlling Biston marginata Shiraki |
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Li Yizhen
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| Abstract: |
| Biston marginata Shiraki was an important pest of broad-leaved and broad-leaved mixed forests in Zhongshan city of Guangdong province in recent years. The larval mortalities caused by the mixtures whose proportions between Sendebao dusts (the mixture of avermectinB1a and Bacillus thuringiensis) and neutral carrier(Ca（HCO3）2 powder) were 1:16, 1:20, 1:24 and 1:30 were 91.71%，87.28%，84.71% and 81.90% in the forest ,respectively.The mixture whose proportion between Sendebao dusts and the powder was 1:30 was dusted to control the larvae of Biston marginata in the wood whose acreage was 1113.5 hm2, and the population density reduced 80.13%. |
| Key words: Biston marginata , the mixture of avermectinB1a and Bacillus thuringiensis,control effect |
