The role of bioassay method in study of relationship between insect and plant volatile as well as the biological significance of attraction of Pterocarya stenoptera to cotton bollworm were discussed.

• 讨论了生测方法在研究昆虫与植物气味关系中的作用以及萎蔫的枫杨叶气味引诱棉铃虫的生物学意义。