中国桉树有害生物的发生现状和发生趋势预测

2011年我国桉树有害生物种类达到370种,其中病害43种(含非侵染性病害3种),有害植物8种,害虫319种(隶属10目64科,包括中名、学名、分布范围、危害树种、危害部位和危害程度),造成轻微危害205种、中等危害71种、严重危害43种,分别比2001年增长了15.8%、1.4%、22.8%。预计到2020年中国桉树有害生物种类将达到420种,比2010年增加50种,增长13.5%,年发生危害面积将达到150000hm2,年经济损失可能达到11.25亿元。我国种植桉树要采取适地适树、加强检疫、加强监测、加强综合防治和合作研究等对策进行综合防治。

Current Situation and Development in Trend of Eucalyptus Pest in China

370 species of eucalyptus pest in China included 43 diseases species,8 of harmful plants species and 319 insects (they are in 10 orders and 64 families with the list including name,distribution,host tree species,damaged position and degree).Light damage is 205 species,middle damage is 71 species and serious damage is 43 species.The light,middle and serious damage species are 15.8%,1.4%,22.8% higher than that they were in 2001,respectively.The trend of eucalyptus pests in China in 2020 were estimated by Gray Method and Markov Chain.The results showed pest species will be 420,which is 50 more than that in 2010; the damage area will be 150000hm² and economic lost will be 1125 million yuan RMB.In order to control eucalyptus pests efficiently,specific eucalyptus species will be selected according to the local environment and strengthen the quarantine inspection,integrated control and co-operation study for contermeasurements.