严防外来有害生物褐纹甘蔗象入侵海南

The potential of the Asian palm weevil,Rhabdoscelus lineaticollis to invade the island of Hainan,China

【背景】褐纹甘蔗象原产于菲律宾,严重危害椰子等棕榈科植物和甘蔗,目前该虫已传入我国台湾、广东、广西和云南,尚未在海南省发生。【方法】为尽早预防该虫传入,本文简要描述了褐纹甘蔗象的生物生态学特性,并运用有害生物危险性分析(PRA)方法,从国内分布情况、潜在的经济危害性、受害寄主的经济重要性、传播扩散的可能性和危险性管理难度等方面对该虫入侵海南的可能性进行了定性和定量分析。【结果】褐纹甘蔗象在海南省的风险评估值R=2.08,属于高风险的林业有害生物,建议将其列入海南省林业检疫性有害生物名单;同时提出了该虫的综合防治措施和建议。【结论与意义】本研究可为尽早制定褐纹甘蔗象防范措施提供参考。

【Background】Rhabdoscelus lineaticollis（ Heller）（ Coleoptera,Curculionidae） is a serious pest of palms and sugercane.It is native to the Philippines,and has been introduced into the island of Taiwan,as well as to Guangdong,Guangxi and Yunnan Provinces on the Chinese mainland,but has not yet been found on Hainan Island. 【Method】The possibility of the invasion to Hainan of this pest was analyzed considering its biological and ecological characteristics,its distribution in China,potential damage to host plants,economic value of host plants,possibility of spread,and available control methods. 【Result】The pest risk analysis indicated a synthetical risk index of 2.08,which is a high-danger degree,and the pest should be listed as a forestry quarantine pest in Hainan Province. 【Conclusion and significance】Integrated control measures and recommendations given in the paper could help for early detection and prevention of spread of this pest.