Opisina arenosella Walker is a dangerous pest which invaded our country in recent days.Based on the international standards for pest measurements（ISPM）,pest risk analysis （PRA） model has been established in this p...Opisina arenosella Walker is a dangerous pest which invaded our country in recent days.Based on the international standards for pest measurements（ISPM）,pest risk analysis （PRA） model has been established in this paper.The risk level of Opisina arenosella in Fujian Province was comprehensively evaluated by the following five indexes：the distribution,the potential degree of damage,the economic value of the infected host plants,the possibility of transmission and spreading and the difficulty of risk management.The risk values of the five indexes were calculated as 3,2.0,3,1.78 and 2,respectively.The overall risk value of the pest was 2.3,which has reached the level of high-risk pests in Fujian.The pest has easily settled down in the three provinces of China,such as Hainan,Guangdong and Guangxi,and will pose a great threat on palm trees in Fujian.It is suggested that Opisina arenosella be included in the forestry quarantine harmful pest list of Fujian province and the quarantine management,monitoring and control of the work strengthened,in order to prevent the spread and proliferation of harm.展开更多
文摘Opisina arenosella Walker is a dangerous pest which invaded our country in recent days.Based on the international standards for pest measurements（ISPM）,pest risk analysis （PRA） model has been established in this paper.The risk level of Opisina arenosella in Fujian Province was comprehensively evaluated by the following five indexes：the distribution,the potential degree of damage,the economic value of the infected host plants,the possibility of transmission and spreading and the difficulty of risk management.The risk values of the five indexes were calculated as 3,2.0,3,1.78 and 2,respectively.The overall risk value of the pest was 2.3,which has reached the level of high-risk pests in Fujian.The pest has easily settled down in the three provinces of China,such as Hainan,Guangdong and Guangxi,and will pose a great threat on palm trees in Fujian.It is suggested that Opisina arenosella be included in the forestry quarantine harmful pest list of Fujian province and the quarantine management,monitoring and control of the work strengthened,in order to prevent the spread and proliferation of harm.
