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The black weevil, Aclees taiwanensis Kôno (Coleoptera: Curculionidae), is one of the primary pests of fig trees in southeastern Asia and southern Europe. Thought to be of subtropical and tropical Asian origin, including China, the weevil was first found in southern areas of South Korea in July 2020. Subsequently, it was found in the following five cities: Haenam, Hampyeong, Jindo, Sinan, and Tongyeong (RDA 2020). Attempts to trace a possible pathway for the exotic black weevil suggested that this species probably followed pathways of illegal importation of infested plants from Taiwan and was unintentionally introduced into South Korea based on analysis of a Pest Information System (PIS) database, a phylogenetic analysis of mitochondrial cytochrome c oxidase subunit I gene (COI) sequences data, and interviews with fig growers. In addition, this exotic weevil could expand to other regions of South Korea since proper control methods for this weevil pest have not yet been developed and some fig trees are cultivated using eco-friendly farming practices. Therefore, constant monitoring will be required for the invasive alien weevil species which seriously damages the trunk of fig trees.
ZooBank registration. urn:lsid:zoobank.org:pub:9D72525F-608D-4028-A24D-9F3F866257F9
Current globalization and technological progress has facilitated and increased the international trade of plant products worldwide and has promoted the long-distance movement of immobile sucking pests such as whiteflies attached on plants. Therefore, being able to compile and update information on intercepted insect pests will help to improve the inspection procedures, to detect, identify and mitigate the damage caused by exotic invasive pests. Records of whiteflies (Hemiptera: Aleyrodidae) intercepted on import plants from 2013 to 2021 in the Pest Information System (PIS) database of South Korea were analyzed. A total of 32 species belonging to 19 genera were intercepted on plants imported into South Korea from 20 countries, mostly located in the Oriental region including China. Brief diagnoses, an identification key and photographs of the 32 species intercepted on agricultural commodities and the countries from which they were detected on plants are given to assist in their identification. In addition, this information provides background data and scientific rationale for decisions regarding the management of whiteflies intercepted at the South Korean ports on imported plant products to prevent the introduction and establishment of exotic whiteflies into South Korea.
ZooBank registration. urn:lsid:zoobank.org:pub:D0889D43-F905-4CCD-A6A2-D4E376E5FC79
Dysmicoccus brevipes (Cockerell) and Dysmicoccus neobrevipes Beardsley are major pests of pineapples, ornamentals, and vegetable crops in many countries around the world. The potential distribution of these mealybug pests into South Korea remains a prime concern because of their high incidence in interceptions screened during inspection. Hence, these species prompted a modelling effort to assess their potential risk of introduction. Potential risk maps were developed for these pests with the CLIMEX model based on occurrence records under environmental data. The potential distribution of these pests in South Korea in the 2020s, 2050s and 2090s is projected based on the RCP 8.5 climate change scenario. Results show that D. brevipes and D. neobrevipes have little potential for invasion in the exterior environment of South Korea due to high cold stress. However, for D. brevipes, three locations in Jejudo were predicted to be marginally suitable for this pest under future climate factors. In that respect, the results of these model predictions could be used to prepare a risk-based surveying program that improves the probability of detecting early D. brevipes and D. neobrevipes populations.
ZooBank registration. urn:lsid:zoobank.org:pub:CE2390B2-6C56-45E7-B4A7-BE30FEEB3F34
Pseudococcus longispinus (Targioni-Tozzetti) (Hemiptera: Pseudococcidae) is a widely-distributed pest that feeds on many economically important hosts, particularly tropical fruits and ornamentals. The potential distribution of this mealybug pest in South Korea remains a primary concern because of its high incidence of interceptions screened during inspection. Hence, this species prompted a modelling effort to assess its potential risk of introduction. Potential risk maps were developed for this pest with a CLIMEX model based on occurrence records under environmental data. The potential distribution of these pests in South Korea in the 2020s, 2050s and 2090s was projected based on the RCP 8.5 climate change scenario. Results showed that P. longispinus has little potential for invasion in the outdoor environment of South Korea due to high cold stress in the 2020s. However, some locations in Jejudo were predicted to be marginally suitable under future climate factors. In that respect, the results of this model prediction could be used to prepare a risk-based surveying program that improves the probability of detecting early P. longispinus populations.
ZooBank registration. urn:lsid:zoobank.org:pub:9E0CBFE6-E1AA-4B55-9E58-70B170E0FBD8