梅州市桉树林油桐尺蠖和桉树落祝蛾的发生及防治

Occurrence and Control of Biston suppressaria and Epimactis talantias in Meizhou Eucalyptus plantations

结合广东梅州区域最近几年桉树虫害发生情况,总结生产中遇到的2种主要虫害(油桐尺蠖和桉树落祝蛾)的发生及防治经验。油桐尺蠖为一年多代,每年呈现上升趋势,对桉树生长影响非常大。2021年在梅州市发现了桉树落祝蛾危害桉树,其危害性不亚于油桐尺蠖,由于其属于杂食性害虫,给防治工作带来一定考验。

Based on the occurrence of Eucalyptus pests in Meizhou,Guangdong Province in recent years,this paper summarizes the occurrence and control experience of Biston suppressaria(Guenee)and Epimactis talantias Meyrick.Biston suppressaria produced more than one generation per year,and showed an upward trend every year,which has had a serious impact on the growth of Eucalyptus.Epimactis talantias was found in 2021 in Meizhou Eucalyptus plantations,and its harmfulness is no less than B.suppressaria,and it creates challenges with regards to control work due to its omnivorous characteristics.