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[摘要]
枸杞负泥虫Lema decempuntata Scopoli是药用植物枸杞的重要害虫。我们从它的体背上经常覆盖有茶褐色虫屎的特性考虑,应用昆虫病原线虫进行了防治试验。在室内筛选中发现这种害虫对芫菁夜蛾线虫Steinernema feltiae及小卷蛾线虫S.carpocapsae十分敏感,感染死亡率达90%以上。在田间防治中,用1500~1600条/mL线虫悬浮液喷在枸杞上,杀虫效果可达70%以上。试验证明,昆虫病原线虫对枸杞负泥虫的防治是具有应用前景的。
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[Abstract]
Ten-spotted lama is one of the most important injurious insects of the well-known medicinal plant of Barbary Wolfberry. Since excrement overlaid the back of the insects,we attempted to use entomopathogenic nematodes to control the injurious insects. It was found that ten-spotted lama is very sensitive to Steireerreema feltiae and S. carpocapsae, and the infected death rate is more than 90%. In the fields,using 1500~1600 nematodes/mL,more than 70% ten-spotted lama can be killed. The present study showed that the use of entomopathogenic nematodes to control ten-spotted lama may have a bright future prospect.
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