【目的】了解菊方翅网蝽在南京的分布及危害情况,并确定其在中国的潜在适生分布区和风险大小,为菊方翅网蝽的防控提供参考。【方法】采用实地踏查的方式对南京市8个主城区的公园、广场、绿道等进行调查;采用MaxEnt生态位模型,结合地理信息系统(ArcGIS)预测菊方翅网蝽在中国的潜在适生区;采用多指标综合评价法,从传入的可能性、定殖的可能性、扩散的可能性、受害寄主的经济重要性和危险性管理难度方面,对菊方翅网蝽在中国的入侵风险进行定量和定性分析。【结果】在南京8个主城区均发现有菊方翅网蝽入侵,主要危害菊科杂草,在菊花上危害较轻;预测菊方翅网蝽在中国的潜在适生区约占中国国土面积的40%;菊方翅网蝽在外来入侵有害生物多指标综合评价体系中得分为2.05,属高度风险有害生物。【结论】菊方翅网蝽在南京市已普遍发生,中国潜在适生范围广、风险较大,应加强对该虫的监测,避免进一步扩散。

【Objective】 The aim of this study was to investigate the current distribution of Corythucha marmorata (Uhler) and the damage it caused in Nanjing City, and to assess its potential distribution and invasion risk in China. 【Method】 Field investigation was conducted to identify the insect distribution in parks, squares, and greenways in eight main urban areas of Nanjing. MaxEnt model combined with the geographic information system (ArcGIS) was used to predict the potential distribution ofC. marmorata in China. The multi-index evaluation system was used to determine the invasion risk of C. marmorata based on five hierarchies including introduction possibility, colonization, diffusion, the economic value of host, and difficulty in risk management, as well as 18 indicators. 【Result】 C. marmorata was found in all invested areas of Nanjing, endangering the weed of Compositae. However, it did not cause severe damage toDendranthema morifolium. The potential distribution of C. marmorata accounted for about 40% of China. The score of C. marmorata was 2.05 in the aforementioned evaluation system, which indicated it belonged to high risk pests in China. 【Conclusion】 C. marmorata is widely distributed in Nanjing. It has a wide range of distribution and poses a big risk to China. Thus, it is crucial to monitor this insect and avoid it from spreading further.