马铃薯甲虫入侵贵州的风险分析

Pest risk analysis of invasion of Colorado Potato Beetle in Guizhou province

马铃薯甲虫是马铃薯等茄科作物上毁灭性的检疫性害虫。本文利用定性分析和定量分析相结合对马铃薯甲虫入侵贵州的风险进行了分析。结果表明,马铃薯甲虫在贵州具有大面积种植的寄主,入侵、定殖可能性大,风险管理难度大;其风险评估R值为2.23,在贵州为高度危险的有害生物。因此应加强检疫管理,以防止其传入和扩散蔓延。

The Colorado potato beetle,Leptinotarsa decemlineata（Say） is one of the quarantine pest causing serious damage of potato industries in the world. In accordance with the principles of pest risk analysis（PRA）, this article has analysed the risk of the Colorado potato beetle by qualitative and quantitative PRA. The results showed that Colorado potato beetle had a large areathe hosts, the invasion and colonization possibility is big and risk management is difficult. The risk value（R） was 2.23. In conclusion,The colorado potato beetle was a high risk quarantine pest in Guizhou province. The quarantine management should be strengthened to prevent its invasion and spread.