Lethal and sublethal effects of spinosad on dengue vector mosquito, Aedes albopictus and bancroftian filariasis vector mosquito, Culex pipiens pallens

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dc.contributor.authorZhang, Xiaoen_US
dc.contributor.authorMeng, Fangeen_US
dc.contributor.authorXu, Huien_US
dc.contributor.authorWei, Lingen_US
dc.contributor.authorWang, Yongmingen_US
dc.contributor.authorHuang, Xiaoen_US
dc.contributor.authorWang, Dongen_US
dc.date.accessioned2025-08-13T09:35:52Z
dc.date.available2025-08-13T09:35:52Z
dc.date.issued2025-03
dc.description.abstractBackground & objectives: Aedes albopictus and Culex pipiens pallens are important vectors of many viruses and have had resistance to chemical pesticides. Spinosad is a selective biological insecticide to control urban mosquitoes. The aim of this study was to reveal the sublethal effects of spinosad on mosquitoes and provide reference basis for integrated mosquito management. Methods: The toxicity of spinosad against Ae. albopictus and Cx. pipiens pallens was determined under laboratory conditions by exposing early third-instar larvae to different concentrations. Results: The LC50 values of spinosad to Ae. albopictus and Cx. pipiens pallens larvaes were were 4.44×10-3 mg?L?1 and 1.93×10-3 mg?L?1 respectively after 72 h exposure. Spinosad at sublethal concentrations has many negative effects on Ae. albopictus and Cx. pipiens pallens larval, pupae, adult and offspring eggs, including significantly reduced their larvae pupation rate by 51.37% and 58.47%, significantly prolonged pupae length by 21.43% and 16.18%, reduced female wing-spans by 20.19% and 14.89%, reduced male wing-spans by 3.84% and 7.54%, reduced female weight by 29.04% and 31.52%, reduced male weight by 7.47% and 9.07%, reduced female and male ratio by 51.98% and 45.21%, reduced individual egg-laying amount by 15.73% and 35.51%. In addition, offspring egg hatchability were dramatically decreased by 25.71% and 34.04%, egg periods were significantly prolonged by 14.42% and 62.82%, respectively. No significant effect on larval period, pupae emergence rate, female bite rates was observed. Interpretation & conclusion: These results suggest that spinosad might affect pest population dynamics significantly and is fairly expected to be a candidate biological pesticide for mosquito control.en_US
dc.identifier.affiliationsDepartment of Vector Biology and Control, Jinan Center for Disease Control and Prevention, Jinan, Shandong, P.R. Chinaen_US
dc.identifier.affiliationsDepartment of Vector Biology and Control, Jinan Center for Disease Control and Prevention, Jinan, Shandong, P.R. Chinaen_US
dc.identifier.affiliationsDepartment of Vector Biology and Control, Jinan Center for Disease Control and Prevention, Jinan, Shandong, P.R. Chinaen_US
dc.identifier.affiliationsDepartment of Vector Biology and Control, Jinan Center for Disease Control and Prevention, Jinan, Shandong, P.R. Chinaen_US
dc.identifier.affiliationsDepartment of Vector Biology and Control, Jinan Center for Disease Control and Prevention, Jinan, Shandong, P.R. Chinaen_US
dc.identifier.affiliationsDepartment of Vector Biology and Control, Jinan Center for Disease Control and Prevention, Jinan, Shandong, P.R. Chinaen_US
dc.identifier.affiliationsDepartment of Vector Biology and Control, Jinan Center for Disease Control and Prevention, Jinan, Shandong, P.R. Chinaen_US
dc.identifier.citationZhang Xiao, Meng Fange, Xu Hui, Wei Ling, Wang Yongming, Huang Xiao, Wang Dong. Lethal and sublethal effects of spinosad on dengue vector mosquito, Aedes albopictus and bancroftian filariasis vector mosquito, Culex pipiens pallens. Journal of Vector Borne Diseases . 2025 Mar; 62(1): 39-44en_US
dc.identifier.issn0972-9062
dc.identifier.placeIndiaen_US
dc.identifier.urihttps://imsear.searo.who.int/handle/123456789/252564
dc.languageenen_US
dc.publisherWolters Kluwer – Medknowen_US
dc.relation.issuenumber1en_US
dc.relation.volume62en_US
dc.source.urihttps://doi.org/10.4103/JVBD.JVBD_58_24https://creativecommons.org/licenses/by-nc-sa/4.0en_US
dc.subjectAedes albopictusen_US
dc.subjectCulex pipiens pallensen_US
dc.subjectspinosaden_US
dc.subjectlethal and sublethal effectsen_US
dc.titleLethal and sublethal effects of spinosad on dengue vector mosquito, Aedes albopictus and bancroftian filariasis vector mosquito, Culex pipiens pallensen_US
dc.typeJournal Articleen_US
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