用正丁烷提取丁香花(Syzygium aromaticum L.)芽的有效成分。用丁香花芽粗提取物对赤拟谷盗的卵和不同龄期的幼虫进行防治试验。结果发现,赤拟谷盗的卵对丁香花芽提取物最为敏感,其致死中浓度(LC_(50))为0.01g/ml。当丁香花芽提取物的浓度达到1g/ml时,则对幼虫有杀虫的作用,而且年轻幼虫比老熟幼虫敏感得多。用丁香花芽提取物处理 The active ingredient of Syzygium aromaticum L. bud was extracted with n-butane. The crude extracts of Lilac flower buds were used to control the eggs and the larvae of different ages. The results showed that the eggs of Tribolium castaneum were the most sensitive to the flower bud extract of Lilac, and the lethal concentration (LC 50) was 0.01 g / ml. When the clove flower bud extract concentration reached 1g / ml, then insecticidal effect on larvae, and young larvae are much more sensitive than mature larvae. Treated with clove flower bud extract