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This study explored the larvicidal properties of bacterial isolates from the egg surfaces of\n                    <jats:italic>Aedes aegypti<\/jats:italic>\n                    L. and\n                    <jats:italic>Aedes albopictus<\/jats:italic>\n                    Skuse (Diptera: Culicidae), the primary and secondary dengue vector mosquitoes in Sri Lanka. Among 30 bacterial isolates, a local strain of\n                    <jats:italic>Pseudomonas mosselii<\/jats:italic>\n                    Quesnel isolated from the egg surfaces of the dengue vectors demonstrated strong larvicidal activity against\n                    <jats:italic>Ae.\u2009aegypti<\/jats:italic>\n                    . Larvicidal assays using the bacterial supernatant (OD 1.7) and freeze\u2010dried products were performed across concentrations ranging from 80 to 2.1\u2009mg\/mL. The LC\n                    <jats:sub>50<\/jats:sub>\n                    values for the supernatant were 55, 54 and 52\u2009mg\/mL at 24, 48 and 72\u2009h, respectively, with corresponding LC\n                    <jats:sub>90<\/jats:sub>\n                    values of 91, 89 and 86\u2009mg\/mL. Freeze\u2010dried supernatant showed LC\n                    <jats:sub>50<\/jats:sub>\n                    values of 2.73, 2.64 and 2.63\u2009mg\/mL, while freeze\u2010dried bacterial culture showed higher toxicity with LC\n                    <jats:sub>50<\/jats:sub>\n                    values of 2.57, 2.51 and 2.44\u2009mg\/mL. Strong larvicidal activity was observed against\n                    <jats:italic>Culex quinquefasciatus<\/jats:italic>\n                    Say (Diptera: Culicidae), a primary vector of filariasis. The freeze\u2010dried products retained their efficacy for up to 2\u2009months. Ovicidal and adulticidal assays indicated no significant effects on mosquito eggs or adults. However, the active components of bacterial metabolites significantly impacted the development of\n                    <jats:italic>Aedes<\/jats:italic>\n                    larvae. Toxicity effects were observed in non\u2010target organisms, including zooplankton and tadpoles. These findings suggest the local\n                    <jats:italic>Ps.\u2009mosselii<\/jats:italic>\n                    strain as a potential bio\u2010larvicide against dengue vectors while underscoring the need for further environmental assessment.\n                  <\/jats:p>","DOI":"10.1111\/mve.70006","type":"journal-article","created":{"date-parts":[[2025,8,9]],"date-time":"2025-08-09T06:34:28Z","timestamp":1754721268000},"page":"875-888","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":1,"title":["Larvicidal potential of\n                    <i>Pseudomonas mosselii<\/i>\n                    isolated from\n                    <i>Aedes<\/i>\n                    (Diptera: Culicidae) egg surfaces against dengue vector mosquitoes and its impact on non\u2010target organisms"],"prefix":"10.1111","volume":"39","author":[{"ORCID":"https:\/\/orcid.org\/0009-0005-6835-6550","authenticated-orcid":false,"given":"Supipi H.","family":"Wijesundara","sequence":"first","affiliation":[{"name":"Department of Zoology, Faculty of Science University of Peradeniya  Peradeniya Sri Lanka"},{"name":"Postgraduate Institute of Science University of Peradeniya  Peradeniya Sri Lanka"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0008-6214-2924","authenticated-orcid":false,"given":"Sanduni R.","family":"Piumali","sequence":"additional","affiliation":[{"name":"Postgraduate Institute of Science University of Peradeniya  Peradeniya Sri Lanka"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9271-7871","authenticated-orcid":false,"given":"Thilini C.","family":"Weeraratne","sequence":"additional","affiliation":[{"name":"Department of Zoology, Faculty of Science University of Peradeniya  Peradeniya Sri Lanka"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2018-0606","authenticated-orcid":false,"given":"Faseeha","family":"Noordeen","sequence":"additional","affiliation":[{"name":"Department of Microbiology, Faculty of Medicine University of Peradeniya  Peradeniya Sri Lanka"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6811-7227","authenticated-orcid":false,"given":"Priyanka P.","family":"de Silva W.A.","sequence":"additional","affiliation":[{"name":"Department of Zoology, Faculty of Science University of Peradeniya  Peradeniya Sri Lanka"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2025,8,8]]},"reference":[{"issue":"1","key":"e_1_2_12_2_1","first-page":"191","article-title":"A novel mosquitocidal bacterium as a biocontrol agent in Saudi Arabia: I\u2010A promising larvicide against Aedes caspius mosquito","volume":"46","author":"Ahmed A.M.","year":"2014","journal-title":"Pakistan Journal of Zoology"},{"key":"e_1_2_12_3_1","doi-asserted-by":"publisher","DOI":"10.3390\/biology11020295"},{"key":"e_1_2_12_4_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.pt.2020.01.001"},{"key":"e_1_2_12_5_1","doi-asserted-by":"publisher","DOI":"10.1111\/tmi.12087"},{"key":"e_1_2_12_6_1","doi-asserted-by":"publisher","DOI":"10.3390\/insects5010139"},{"key":"e_1_2_12_7_1","doi-asserted-by":"publisher","DOI":"10.1126\/sciadv.1700585"},{"key":"e_1_2_12_8_1","unstructured":"Epidemiology Unit. 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