枣食芽象甲对不同品种枣树挥发物气味行为反应

The Behavior Responses of Scythropus yasunatsui to Volatiles Emanating from Different Cultivars of Jujube Trees

为了给开发植物源引诱剂监测和控制枣食芽象甲提供新方法,以6种枣树品种的枣叶和枣芽为试材,研究了枣食芽象甲寄主定向机制。利用Y型嗅觉仪测定了枣食芽象甲成虫对6种枣树品种的枣叶和枣芽的气味的嗅觉反应。结果表明,枣食芽象甲成虫对6种枣树品种枣叶的反应率为53.57%～57.58%,6种枣树品种的枣叶挥发物均没有明显的引诱作用(P>0.05);枣食芽象甲成虫对‘赞皇枣’、‘壶瓶枣’和‘骏枣’的枣芽挥发物反应率均大于68%,这3种枣树品种的枣芽挥发物对枣食芽象甲有明显的引诱作用(P<0.05)。

In order to provide new method to develop botanical attractant for controlling and monitoring S.yasunatsui,with 6 cultivars of jujube leaves and buds as test materials,the author studied the host orientation mechanism of adults Scythropus yasunatsui.The clear air was set as control,the behavior responses of adults of S.yasunatsui to volatiles emanating from 6 cultivars of jujube leaves and buds were measured by using a Y-tube olfactometer in the laboratory.The results showed that response rates of S.yasunatsui to volatiles emanating from 6 cultivars of jujube leaves were 53.57%-57.58%,and volatiles emitted from 6 cultivars of jujube leaves had not obvious attractant to all adults （P〉0.05）.While response rates of S.yasunatsui to volatiles emanating from Zanhuang jujube buds,Huping jujube buds and Jun bud were above 68%,these volatiles of buds were more attractive significantly than the control to adults of S.yasunatsui （P〈0.05）.