Experiment on three biological pesticides preventing and controlling Dendrolimus houi
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摘要: 采用绿得保、苏云金杆菌和阿维菌素3 种生物农药对云南松毛虫Dendrolimus houi 3 ~ 4龄幼虫进行防治试验。结果表明:绿得保1∶10 , 1∶15 , 1∶20 配置比例杀虫效果均达84.97 %以上, 其中1∶15 配置最适合林间大面积防治云南松毛虫;阿维菌素1∶4 000 配置比例杀虫效果达93.23 %, 可适用于水源充足、树体矮小以及房前屋后等小范围防治云南松毛虫。表1 参7Abstract: Experiment on three biological pesticides preventing and controlling 3 -4 instar larva of Dendrolimus houi including Ludebao , Bacillus thuringiensis (Bt)and Aveyjunsu was conducted .The results indicated that the effective rate of the Ludebao at the proportion of 1∶10 , 1∶15 and 1∶20 all reached over 84.97 %.Ludebao at the proportion of 1∶15 was suitable for preventing and controlling D .houi within the vast area of the forest .The effective rate of Aveyjunsu at the proportion of 1∶4 000 was up to 93.23 %, which was suitable for preventing and controlling D .houi within a small area with sufficient water source and short trees or around houses .[ Ch , 1 tab . 7 ref .]
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Key words:
- forest protection /
- Dendrolimus houi /
- biological pesticides /
- bio-chemical control
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