【摘要】 200 0年和 2 0 0 3年的 4～ 6月对惠州市城区名木古树白蚁发生的种类与危害程度的调查结果显示 ,主要危害种类为黑翅土白蚁〔Odontotermesformosanus (Shiraki)〕和台湾乳白蚁 (CoptotermesformosanusShiraki ) ;白蚁危害程度随时间的延长而加重 ,平均受害株率由 2 0 0 0年的 5 1.2 6%上升到 2 0 0 3年的 76.0 5 % ,白蚁危害率也随着树龄的增大而加重 ,树龄 2 0 0年以上的古树 10 0 %受到白蚁侵害。并分析了白蚁危害加重的原因 ,提出相应的防治对策更多还原

【Abstract】 Termite species and their damage in valuable-ancient trees were investigated in Huizhou city in April to June both 2000 and 2003. Only 3 species were found altogether in trees. They caused significant damage to trees. The percentage of the damaged trees ranged from 51.26% to 76.05% both in 2000 and in 2003. In the mean time, the reasons were analysed and the practical control countermeasure was also suggested in the article.更多还原