Ailanthus tryphysa是一种软木树,它生长在印度南部的人造林中,这种树上有两种主要害虫:臭椿皮蛾(EIigma narcissus鳞翅目,夜蛾科)。和乔椿巢蛾(Atteva fabriciella鳞翅目,巢蛾科)1983年9—12月间,当这个地区的害虫大。量集聚时,发现有许多E.narcissus死幼虫挂在树叶上,感染幼虫的肠溶物和分泌物中都有一种杆状菌。我们怀疑这些幼虫是受该菌寄生而死,为了证实这种可能 Ailanthus tryphysa is a cork tree that grows in planted forests in southern India. There are two major pests in this tree: EIigma narcissus Lepidoptera, Noctuidae. And Atteva fabriciella (Lepidoptera, Nematoda) Between September and December 1983, when the pests in this area were large. When aggregated, many dead E. narcissus larvae were found hanging on the leaves, and there was a bacterium in the enteric and secretions of infected larvae. We suspect these larvae were parasitic and killed by the bacteria, in order to confirm this possibility