德宏州西南桦人工林主要有害生物及防治

德宏州从1997年开始大面积营造西南桦木材用人工林，到2012年底，全州累计造林9.3万hm2，蓄积量达470万m3，增加森林覆盖率2.8%，成为德宏州主要用材树种之一。但随着西南桦人工种植纯林面积的增加，有害生物危害也日趋严重。简述德宏州西南桦上危害比较严重的14种主要有害生物，并提出综合防治方法。

Major Pests and Control Methods of Betula alnoides Plantations in Dehong Prefecture

Betula alnoides has planted a large area plantations for wood from 1997 in Dehong prefecture. By the end of 2012, the cumulative planting Betula alnoides 93,000 hm2, reserves 0.47 million m3, increase forest coverage rate 2.8 percentage points. Betula alnoides has become a major timber species used in Dehong prefecture. But with the increasing of Betula alnoides plantations area, pest endangerment is increasingly serious. This paper describes 14 major pest species on Betula alnoides in Dehong prefecture, and proposed the integrated control methods.