烟蚜通过烟蚜茧蜂生物防治的效果及病毒病风险分析

Analysis on the Biological Control Effect and Virus Risk of Obacco Aphids Prevented by Aphidius Gifuensus Ashmead

通过对烟蚜茧蜂防治烟蚜的试验表明,在初始蚜量较低的条件下,采用3次以上放蜂的方法散放烟蚜茧蜂防治烟蚜,可有效地缓解烟蚜种群数量的增长,相当于施用化学杀蚜剂的防治效果.但繁殖烟蚜茧蜂所依赖的烟蚜,给烟叶生产中黄瓜花叶病(CMV)、马铃薯Y病毒病(PVY)、烟草丛顶病(TBTV)等烟草病毒病的发生与流行带来潜在风险.为此,在强调加大力度规范烟蚜茧蜂的繁殖与散放操作的同时,还需要进一步研究更为经济有效的综合防治措施.

The field experiment which tobacco aphids were prevented by Aphidius gifuensus Ashmead showed that it could effectively control tobacco aphids population growth through Aphidius Gifuensus Ashmead being released more than three times under the fewer tobacco aphids population initially,Equivalent to the effect used of pesticides.But it exists a potential risk that tobacco virus diseases,such as CMV（cucumber mosaic virus）,PVY（potato virus Y）,TBTV（tobacco bushy top Umbravirus）,and so on,occur popularly in production.Therefore,on one hand we emphasize standard in the course of Aphidius gifuensus Ashmead being produced and released,but on the other hand it is necessary to study further more economical and effective control measures.