摘要
生物测定结果表明，番茄枝叶的甲醇和水溶性乙醇提取物（简称Ｅｍ、Ｅｍｅ、Ｅｅ）对菜粉蝶均有显著的产卵忌避作用；其中Ｅｅ、Ｅｍｅ和Ｅｍ第１天的产卵忌避率分别为８７４％、８５１％和５０５％，均达到差异显著水平。番茄枝叶乙醇提取物（Ｅｅ）不仅能显著地忌避菜粉蝶产卵，而且还强烈地干扰其产卵行为。在网室中，Ｅｅ的３个剂型试验结果表明，只有剂型“Ｅｅ＋０１％吐温－８０”对菜粉蝶的产卵忌避率达到差异显著水平，第６天的忌避率仍达３５４％。
Semiochemicals perform the key physiological functions in the course of interactions between insects and plants. Bioassay studies showed that the avoidance of tomato plant from oviposition by cabbage butterfly was proved to be attributed to the presence of water soluble deterrent which could be extracted by ethanol. Oviposition deterrent indices (ODI) of the ethanol extract(Ee) were 87 4% and 80 9% respectively in the first day and third day after treatment, both were statistically significant . The active water soluble fractions when applied on cabbages not only significantly reduced the amount of eggs laid on the cabbage leaves, but also strongly disturbed their normal oviposition behavior in contrast to the controls. Net house tests showed that a formulation of the active water soluble components with Tween 80 (Ee+0 1%Tween 80) may be hopeful to be developed as an oviposition deterrent which keeps effective for more than a week when applied on cabbages.
出处
《昆虫学报》
CAS
CSCD
北大核心
1998年第S1期57-61,共5页
Acta Entomologica Sinica
基金
国家自然科学基金
关键词
菜粉蝶
番茄
提取物
产卵忌避活性
Pieris rapae, Lycopersicon esculentum, extracts, oviposition deterring activity
