{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,3]],"date-time":"2026-04-03T18:00:27Z","timestamp":1775239227562,"version":"3.50.1"},"reference-count":41,"publisher":"Wiley","issue":"12","license":[{"start":{"date-parts":[[2021,8,23]],"date-time":"2021-08-23T00:00:00Z","timestamp":1629676800000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":["scijournals.onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Pest Management Science"],"published-print":{"date-parts":[[2021,12]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>BACKGROUND<\/jats:title><jats:p>In 2017 <jats:italic>Tuta absoluta<\/jats:italic> was identified as an invasive species in China. Due to its rapid geographic expansion and the severe crop damage it causes, <jats:italic>T. absoluta<\/jats:italic> poses a serious threat to China's tomato production industry. To determine its geographic distribution and host range, intensive surveys and routine monitoring were conducted across the Chinese mainland between 2018 and 2019. The population colonization coefficient (PCC; ratio of colonized sites and prefectures) and population occurrence index (POI; ratio of infested host species and PCCs) were calculated.<\/jats:p><\/jats:sec><jats:sec><jats:title>RESULTS<\/jats:title><jats:p>In northwestern China, <jats:italic>T. absoluta<\/jats:italic> populations established in Xinjiang exhibited a medium PCC value (~0.03). In southwestern China, populations in Yunnan and its five neighboring provinces exhibited high (~0.50 in Yunnan and Guizhou), or low (&lt;0.02 in Guangxi, Sichuan, Hunan, and Chongqing) PCC values. In the Chinese mainland, infestations of four crop plant species (tomato, eggplant, potato, and Chinese lantern) and two wild plant species (black nightshade and Dutch eggplant) were identified; tomatoes were infested in every colonized province. Chinese lantern and Dutch eggplant are potentially novel hosts. Yunnan, Guizhou, and Xinjiang experienced the most serious damage (POI). In southwestern China, observed damage significantly decreased with increased distance from the first discovery site of <jats:italic>T. absoluta<\/jats:italic> to the farthest county of an infested province increased.<\/jats:p><\/jats:sec><jats:sec><jats:title>CONCLUSION<\/jats:title><jats:p><jats:italic>T. absoluta<\/jats:italic> populations are well\u2010established and could potentially spread to other regions of China. The present study helps to inform the establishment of better pest management guidelines and strategies in China and tomato\u2010producing regions worldwide. \u00a9 2021 Society of Chemical Industry.<\/jats:p><\/jats:sec>","DOI":"10.1002\/ps.6588","type":"journal-article","created":{"date-parts":[[2021,8,5]],"date-time":"2021-08-05T08:53:05Z","timestamp":1628153585000},"page":"5475-5488","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":64,"title":["Outbreak of the South American tomato leafminer, <scp><i>Tuta absoluta<\/i><\/scp>, in the Chinese mainland: geographic and potential host range expansion"],"prefix":"10.1002","volume":"77","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-9503-7743","authenticated-orcid":false,"given":"Gui\u2010fen","family":"Zhang","sequence":"first","affiliation":[{"name":"State Key Laboratory for Biology of Plant Diseases and Insect Pests\/Key Laboratory of Integrated Pest Management of Crop 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