输华马铃薯上哥伦比亚根结线虫风险分析

依据国际植物检疫措施标准(ISPM)规定的有害生物风险分析程序(PRAS),利用多指标综合评估方法,通过对哥伦比亚根结线虫(Meloidogyne chitwoodi)的生物学特性、地理分布、寄主、经济意义和危害性等方面进行分析,结合我国进口马铃薯种薯和马铃薯种植情况,确定了其在中国具有传入、定殖和扩散的可能性,对各指标值进行赋值运算,获得总指标值R为2.25,符合高风险的检疫性有害生物标准,因此建议将其列入输华马铃薯检疫性有害生物名单,实施风险管理。本文提出了风险管理措施方案。

Risk analysis of Columbia root-knot nematode Meloidogyne chitwoodi on potatoes in China

The risk posed by Columbia root-knot nematodes,Meloidogyne chitwoodi,on potato in China was assessed by using the integrated multi-index evaluation measurement,based on internationally developed pest risk assessment scheme(PRAS) of international standards for pest measurements(ISPM).The analysis reviewed the biology,current distribution,hosts and economic impact of M.chitwoodi in the epidemic areas as well as the imported potatoes and their economic importance in China.It was concluded that M.chitwoodi possesses the significant risk of entry,establishment and spreading in China.The integrated evaluation index R was 2.25.This risk analysis contributed to the decision that M.chitwoodi was added to the list of quarantine pests of imported potatoes in China. Risk management protocols were also evaluated to reduce the introduction risk of M.chitwoodi.