镇江市杨树食叶害虫发生情况及防治措施

Occurrence and control of poplar defoliators in Zhenjiang City

为了解镇江市杨树食叶害虫的主要种类和发生情况,从2013—2016年采用踏查结合灯诱的方法连续调查了杨树食叶害虫的种类、发生范围及发生面积。结果显示:镇江市杨树食叶害虫以鳞翅目昆虫为主,其中以舟蛾科害虫发生面积最广。2013年镇江市杨树食叶害虫累计发生6 860 hm2,其中重度发生800 hm2。2013年之后,分别采取树干打孔注药、叶面喷药和释放天敌昆虫相结合的综合措施,取得了较为显著的防治效果,镇江市杨树食叶害虫发生面积大幅度下降,从2014年到2016年,镇江市杨树食叶害虫发生面积未出现大幅波动。

The main species and occurrence of poplar defoliators in Zhenjiang City were investigated by primary survey from 2013 to 2016 in this article. The results showed that Lepidoptera was considered as an order of the dominant species among all the poplar defoliators,in which Notodontidae was a family of the main pests. The occurrence area of poplar defoliators in Zhenjiang City was 6 860 hm2 in 2013,with severe damage area of 800 hm^2. After 2013,the occurrence area of poplar defoliators in Zhenjiang City declined significantly. From 2014 to 2016, wide-ranged fluctuation of the occurrence area did not appear. Injection of stem drilling,foliar spraying and releasing natural enemy insect were used to control poplar defoliators comprehensively,which achieved significantly positive effects.