摘要
1999年在内蒙古草原进行了用绿僵菌油剂超低量喷雾防治蝗虫的试验。结果表明 ,对 5种蝗虫 (亚洲小车蝗、红翅皱膝蝗、毛足棒角蝗、白边痂蝗、轮纹异痂蝗 )的防效显著。喷药后 8天 ,对主要蝗虫亚洲小车蝗 (占混合虫口的 92 .2 % )的防效达 48.0 % ,12天后增至 88.1%。蝗虫死亡后 2～ 3天 ,失水形成僵虫 ;7～ 10天虫尸上出现绿色粉状的绿僵菌孢子。
Field experiments of using Metarhizium flavoviride ultra low volume oil spray to control grassland grasshoppers were carried out in Inner Mongolia in 1999. Results showed that the oil spray was effective to all the 5 species of grasshoppers, namely, Oedaleus decorus asiaticus B. Bienko, Angaracris rhodopa (F. W.), Dasyhippus barbipes (F. W.), Bryodema luctuosum luctuosum (Stoll) and B.tuberculatum dilutum (Stoll). 8 d after application, 48.0% of O.decorus asiaticus was killed and the mortality increased to 88.1% at the end of 12th day. New spores of the green fungus appeared on the dead locusts 7~10 d later. It was probable that the spores emerged from the locust cadaver would infect those locusts which had escaped the fungal spray.
出处
《中国生物防治》
CSCD
2000年第2期49-52,共4页
Chinese Journal of Biological Control
基金
农业部 94 8项目 !( 96 10 58)
农业部农作物病虫草害生物防治资源研究与利用重点开放实验室资助项目
关键词
绿僵菌
草原蝗虫
油剂
药效试验
生物防治
Metarhizium flavoviride
Oedaleus decorus asiaticus
grasshoppers
oil spray
