{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,14]],"date-time":"2026-10-14T07:48:39Z","timestamp":1791964119600,"version":"4.3.4"},"reference-count":38,"publisher":"Wiley","license":[{"start":{"date-parts":[[2026,10,14]],"date-time":"2026-10-14T00:00:00Z","timestamp":1791936000000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"},{"start":{"date-parts":[[2026,10,14]],"date-time":"2026-10-14T00:00:00Z","timestamp":1791936000000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"content-domain":{"domain":["scijournals.onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Pest Management Science"],"abstract":"Abstract<\/jats:title>\n \n BACKGROUND<\/jats:title>\n \n Nilaparvata lugens<\/jats:italic>\n (St\u00e5l) and\n Sogatella furcifera<\/jats:italic>\n (Horv\u00e1th), which are rice planthoppers that migrate from Vietnam to Japan\n via<\/jats:italic>\n China, have developed resistance to certain insecticides. Long\u2010term monitoring of insecticide susceptibility in these insect pests is required to develop effective strategies for controlling their populations. However, long\u2010term monitoring of the insecticide susceptibility of\n N. lugens<\/jats:italic>\n and\n S. furcifera<\/jats:italic>\n has not yet been conducted in Vietnam. Here, we determined fluctuations in the median lethal dose (LD\n 50<\/jats:sub>\n ) values of triflumezopyrim, which is a newly developed insecticide, and other insecticides against\n N. lugens<\/jats:italic>\n and\n S. furcifera<\/jats:italic>\n to reveal the current trends (2018\u20132024) in the insecticide susceptibility of\n N. lugens<\/jats:italic>\n and\n S. furcifera<\/jats:italic>\n in Vietnam and Japan.\n <\/jats:p>\n <\/jats:sec>\n \n RESULTS<\/jats:title>\n \n The LD\n 50<\/jats:sub>\n values of triflumezopyrim against\n N. lugens<\/jats:italic>\n and\n S. furcifera<\/jats:italic>\n in Vietnam and Japan remained low during the study period. The LD\n 50<\/jats:sub>\n values of neonicotinoids against\n N. lugens<\/jats:italic>\n in both countries exhibited an increasing trend, whereas the LD\n 50<\/jats:sub>\n values of neonicotinoids against\n S. furcifera<\/jats:italic>\n remained low.\n <\/jats:p>\n <\/jats:sec>\n \n CONCLUSION<\/jats:title>\n \n We clarified species\u2010specific differences in insecticide susceptibility between\n N. lugens<\/jats:italic>\n and\n S. furcifera<\/jats:italic>\n . Similar fluctuations in the LD\n 50<\/jats:sub>\n values of the tested insecticides against\n N. lugens<\/jats:italic>\n and\n S. furcifera<\/jats:italic>\n in Vietnam and Japan supported the hypothesis that Vietnam is the population source of rice planthoppers that migrate to Japan. Overall, our results indicate that at present, triflumezopyrim is effective in controlling rice planthoppers in Vietnam and Japan. However, continued monitoring of insecticide susceptibility is required for insecticide resistance management in East Asia. \u00a9 2026 Society of Chemical Industry.\n <\/jats:p>\n <\/jats:sec>","DOI":"10.1002\/ps.71383","type":"journal-article","created":{"date-parts":[[2026,10,14]],"date-time":"2026-10-14T07:30:37Z","timestamp":1791963037000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Insecticide susceptibility of brown planthopper (\n \n Nilaparvata lugens<\/i>\n <\/scp>\n ) and white\u2010backed planthopper (\n \n Sogatella furcifera<\/i>\n <\/scp>\n ) in Vietnam and Japan to triflumezopyrim and other insecticides"],"prefix":"10.1002","author":[{"ORCID":"https:\/\/orcid.org\/0009-0007-0945-944X","authenticated-orcid":false,"given":"Mizuki","family":"Matsukawa\u2010Nakata","sequence":"first","affiliation":[{"name":"Japan International Research Center for Agricultural Sciences (JIRCAS) Tsukuba Ibaraki Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Masaya","family":"Matsumura","sequence":"additional","affiliation":[{"name":"Institute for Plant Protection, National Agriculture and Food Research Organization (NARO), Koshi Campus Kumamoto Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Chung Huy","family":"Nguyen","sequence":"additional","affiliation":[{"name":"Plant Protection Research Institute (PPRI) Hanoi Vietnam"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Tho Thi","family":"Nguyen","sequence":"additional","affiliation":[{"name":"Plant Protection Research Institute (PPRI) Hanoi Vietnam"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Nhung Thi","family":"Lam","sequence":"additional","affiliation":[{"name":"Plant Protection Research Institute (PPRI) Hanoi Vietnam"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Hung","family":"Nguyen","sequence":"additional","affiliation":[{"name":"Plant Protection Research Institute (PPRI) Hanoi Vietnam"},{"name":"Applied BioSciences Macquarie University North Ryde NSW Australia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Youichi","family":"Kobori","sequence":"additional","affiliation":[{"name":"Japan International Research Center for Agricultural Sciences (JIRCAS) Tsukuba Ibaraki Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Sachiyo","family":"Sanada\u2010Morimura","sequence":"additional","affiliation":[{"name":"Institute for Plant Protection, National Agriculture and Food Research Organization (NARO), Koshi Campus Kumamoto 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