广东省双线盗毒蛾风险性分析

Pest Risk Analysis of Porthesia scintillans in Guangdong

双线盗毒蛾(Porthesia scintillans)是我国华南地区的重要害虫,主要危害桉树、红椎、山乌桕、大花紫薇等多种植物。广东省气候条件和地理位置适宜其生存,且易于爆发成灾。参照国际通用有害生物分析的方法,从适生分布、传播扩散和定殖可能性、潜在危害性、受害对象重要性、危险性治理难度等5方面对广东省双线盗毒蛾风险性进行了定性、定量分析和综合评估,结果为双线盗毒蛾在广东省的风险综合评估R值为1.31,属于低度危险林业有害生物。该结果对制定科学防治双线盗毒蛾的对策具有指导意义。

Porthesia scintillans,an major pest in South China,mainly endangers Eucalyptus robusta,Castanopsis hystrix,Sapium discolor,Lagetstroemia speciosa and other plants.The climatic conditions and geographical location of Guangdong are suitable for its survival and outbreak into disaster.Referring to the international general pest analysis method,the qualitative and quantitative analysis and comprehensive evaluation of the risk of Porthesia scintillan in Guangdong are carried out from five aspects:adaptive distribution,possibility of transmission and colonization,potential harm,importance of victims,difficulty of risk management.The results show that the R value of comprehensive risk evaluation of Porthesia scintillans in Guangdong is 1.31,indicating a low-risk forestry pest.The results have guiding significance for the formulation of scientific countermeasures for the control of Porthesia scintillan.