稻水象甲入侵上海市的风险性分析及管理对策

Pest risk analysis and risk management of Rice Water Weevil in Shanghai

稻水象甲(Lissorbqptrus oryzqphilus Kuschel)是水稻的一种毁灭性害虫,繁殖扩散迅速,防控困难,已被10多个国家列为检疫性有害生物。水稻是上海市郊种植面积最大的粮食作物,目前上海水稻种植区尚未发现该虫的发生与危害。为探明稻水象甲在上海地区的风险性,本文以上海市的气候、水稻种植情况及稻水象甲的生物学特性为基础,利用有害生物多指标综合评估方法,分析了稻水象甲入侵上海的风险性。结果显示,稻水象甲入侵上海的风险值为2.28,属于高度危险类型。同时,根据稻水象甲较高的入侵上海的潜在风险,提出了对稻水象甲入侵风险管理的对策。

The Rice Water Weevil(RWW),Lissorbqptrus oryzqphilus,is a kind of destructive pest of rice,it breeds and spreads rapidly,and it is very difficult to control,the pest has been listed as an important quarantine pest over a dozen countries. Rice is the largest grain crop in the suburbs of Shanghai,no RWW had been found in Shanghai up to now. The risk of Rice Water Weevil in Shanghai was comprehensively evaluated in view of qualitative analysis and quantitative evaluation using comprehensive evaluation index method for pests according to the rice planting,weather condition and biology of Rice Water Weevil,based on the principles of pest risk analysis(PRA) from comprehensive evaluation index system.Results showed that Rice Water Weevil had suitable hosts with a large area,high vitality and it could cause serious economic losses on rice in Shanghai,and the risk assessment value(R) was 2.28. In conclusion,Rice Water Weevil belonged to the most dangerous invasive alien pest to Shanghai. The risk management strategies were proposed to for preventing its invasion in Shanghai.