A Risk Evaluation for the Potential Host Plants of Invasive Bactrocera dorsalis (Hendel) (Diptera: Tephritidae) in Jeju, Republic Korea

The Oriental fruit fly (Bactrocera dorsalis (Hendel)) is a subtropical insect pest belonging to Tephritidae, and causes severe damage to essential crops such as citrus and mango. This species is currently not found in Korea and is listed as one of the most banned pests subject to quarantine. The concerns about the invasion of Oriental fruit flies has grown due to climate change. Proactive measures are needed against this pest, which can severly affect on citrus fruits, particularly in Jeju, a subtropical region. When these banned fruit flies invade, immidiate control measures for their host plants are required. Therefore, information about the host plants in advance is crucial. In this paper, based on the previously reported list of representative Oriental fruit fly host plants (USDA list of 432 species), added 66 new species of host plants, resulting in a t otal o f 498 species. W e also e valuated the b reeding risk o f Oriental f ruit f lies on m aj or host plants found in the Jeju area. The supplementary material provides information on 228 native plants from the Jeju region that could serve as potential hosts for Oriental fruit flies.