Field evaluation of novaluron, a chitin synthesis inhibitor larvicide, against mosquito larvae in polluted water in urban areas of Bangkok, Thailand.

dc.contributor.authorTawatsin, Apiwaten_US
dc.contributor.authorThavara, Usavadeeen_US
dc.contributor.authorBhakdeenuan, Payuen_US
dc.contributor.authorChompoosri, Jakkrawarnen_US
dc.contributor.authorSiriyasatien, Padeten_US
dc.contributor.authorAsavadachanukorn, Preechaen_US
dc.contributor.authorMulla, Mir Sen_US
dc.date.accessioned2009-05-27T16:27:35Z
dc.date.available2009-05-27T16:27:35Z
dc.date.issued2007-05-20en_US
dc.descriptionThe Southeast Asian Journal of Tropical Medicine and Public Health.en_US
dc.description.abstractNovaluron, an insect growth regulator, a benzoylphenyl urea insecticide, was evaluated in the field against the larvae of polluted-water mosquitoes. The study was carried out in highly polluted sites infested with populations of mosquito larvae, mostly Culex quinquefasciatus Say, in low-income communities in urban areas of Bangkok, Thailand. An EC10 formulation was premixed in water and applied by pressurized spray tank to plots ranging from 180 to 1,000 m2 at the rate of 0.1 ml EC 10/m2 (equal to 10 mg a.i./m2) of the breeding sites. Assessments were made by sampling mosquito larvae and pupae to determine the trends of immature populations before treatment and weekly after treatment. Reduction of the populations in percents were then computed by comparing counts of immature mosquitoes (larvae and pupae) to the pretreatment counts at each particular site. It was found that the immature populations of mosquitoes in the treated areas were dramatically suppressed and remained at extremely low levels for 3-7 weeks after the treatment depending on the prevailing conditions of each experimental site. No negative impact on fishes or aquatic plants in the treated areas were detected during the study period and three months after the experiment was discontinued. Novaluron is an effective agent to control immature populations of polluted-water mosquitoes, especially Cx. quinquefasciatus in habitats in urban areas. This IGR larvicide may play an important role in vector control programs in terms of effectiveness, environmental friendliness and strategies for insecticide-resistance management in vector mosquitoes.en_US
dc.description.affiliationNational Institute of Health, Department of Medical Sciences, Ministry of Public Health, Nonthaburi 11000, Thailand. apiwat@dmsc.moph.go.then_US
dc.identifier.citationTawatsin A, Thavara U, Bhakdeenuan P, Chompoosri J, Siriyasatien P, Asavadachanukorn P, Mulla MS. Field evaluation of novaluron, a chitin synthesis inhibitor larvicide, against mosquito larvae in polluted water in urban areas of Bangkok, Thailand. The Southeast Asian Journal of Tropical Medicine and Public Health. 2007 May; 38(3): 434-41en_US
dc.identifier.urihttps://imsear.searo.who.int/handle/123456789/35257
dc.language.isoengen_US
dc.source.urihttps://www.tm.mahidol.ac.th/seameo/2007_38_3/05-4000.pdfen_US
dc.subject.meshAnimalsen_US
dc.subject.meshBreedingen_US
dc.subject.meshChitin Synthase --drug effectsen_US
dc.subject.meshCulicidae --growth & developmenten_US
dc.subject.meshInsecticidesen_US
dc.subject.meshLarva --drug effectsen_US
dc.subject.meshMosquito Control --methodsen_US
dc.subject.meshPhenylurea Compounds --antagonists & inhibitorsen_US
dc.subject.meshThailanden_US
dc.subject.meshUrban Populationen_US
dc.subject.meshWater Pollutionen_US
dc.titleField evaluation of novaluron, a chitin synthesis inhibitor larvicide, against mosquito larvae in polluted water in urban areas of Bangkok, Thailand.en_US
dc.typeJournal Articleen_US
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