褐纹甘蔗象在中国的适生区分析

Predicting likely areas of invasion by the asiatic palm weevil,Rhabdoscelus lineaticollis in China

褐纹甘蔗象Rhabdosceluslineaticollis (Heller)是棕榈科植物和甘蔗的重要害虫。利用CLIMEX气候模型 ,对该虫在我国的适生区进行了分析和预测。结果显示 ,海南省、广东省、广西壮族自治区、福建省、浙江省和云南省南部地区是褐纹甘蔗象在我国大陆的适生区。这些区域正是我国棕榈科植物和甘蔗的主要生产区 ,超前预防该虫入侵是非常必要的。

An alien pest,Rhabdoscelus lineaticollis(Heller)(Coleoptera:Curculionidae),has recently invaded South China,where its host plants are mainly palms and sugarcane.The CLIMEX and WHYWHERE models were used to predict the favourable habitat of this pest.The first favorable area covers Hainan Province,as well as Southern Guangdong and Guangxi Provinces,which lie to the South of the Tropic of Cancer.The second favorable area included Fujian Province and Southern Zhejiang Province.There are host plants of this pest in these areas.This suggests that this species can establish populations in some parts of China.Risk analysis should be done in order to determine whether this pest should be quarantined or not.