木薯害虫普查及其安全性评估

General Survey and Safety Assessment of Cassava Pests

为适应中国木薯产业的可持续发展需要,于2008～2009年间对木薯害虫、害螨在中国华南地区的分布、危害进行普查,并对2种国家检疫性毁灭性害虫、害螨进行了风险评估和5种主要害虫、害螨对木薯产业及本地生态经济的影响进行了分析。结果表明,海南、广西、广东共查获木薯害虫、害螨36种,其中害虫33种,害螨3种,并在国内首次发现木薯单爪螨和螺旋粉虱危害木薯,朱砂叶螨、蔗根锯天牛、白蛴螬在国内木薯种植区大面积严重发生与危害;木薯单爪螨、螺旋粉虱对木薯均属于高度危险有害生物;目前,木薯害虫、害螨已成为中国热区木薯产业能否可持续发展的重要限制因子之一,对木薯产业及本地生态经济的潜在影响与威胁十分严重。

To meet the healthy, rapid and sustainable development of cassava （Manihot esculenta Crantz） industry, the distribution and damages of cassava pests and mites in southern China were conducted in 2008 and 2009, and risk assessment of two destructive national quarantine pest and mites and effects of five cassava pests and mites on cassava industry and the local ecology economy were analyzed.The results showed that there were 36 species of cassava pests and mites in Hainan, Guangxi and Guangdong provinces, including 34 species of insects and 2 species of mites.It was the first time to find Mononychellus tanajoa and Aleurodicus disperses to damage cassava plants and Tetranychus cinnabarinus, Dorysthenes granulosus and white grubs outbroke seriously and widely in cassava growing areas in China.At present, cassava pests and mites have become one of the most important limiting factors for the sustainable development of cassava industry and will have a very serious, potential economic risk on cassava industry and the local ecology.