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A field evaluation study on the effects of residual spray of Bifenthrin and Deltamethrin on Anopheles minimus population in Mae Hong Son Province, northern Thailand


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Title: A field evaluation study on the effects of residual spray of Bifenthrin and Deltamethrin on Anopheles minimus population in Mae Hong Son Province, northern Thailand
Other Titles: Bifenthrin とDeltamethrin の残留噴霧がコガタハマダラカ個体群に与える影響:北部タイ・メーホンソン県における野外評価
Authors: Prajakwong, Somsak / Suwonkerd, Wannapa / Chawprom, Srisucha / Banchong-Aksorn, Trairat / Tsuda, Yoshio / Takagi, Masahiro
Authors (alternative): Prajakwong, Somsak / Suwonkerd, Wannapa / Chawprom, Srisucha / Banchong-akson, Trairat / 津田, 良夫 / 高木, 正洋
Issue Date: 15-Sep-2002
Publisher: 日本熱帯医学会 / Japanese Society of Tropical Medicine
Citation: 日本熱帯医学会雑誌, vol.30(3), pp.289-293; 2002
Abstract: A field study was conducted to evaluate the effects of indoor residual house spraying of Bifenthrin and Deltamethrin on malaria vector population of Anopheles minimus s.l., from April 1999 to April 2001 at rural villages in Mae Hong Son province, northern Thailand. Nine villages in Mae Hong Son province were selected for the present study (three villages for control and three villages each for insecticide spray). The residual spray of Bifenthrin (25 mg/m2) showed greater adulticiding effects on An. minimus s.l. population than Deltamethrin (20 mg/m2). In Bifenthrin treated villages, a clear decrease in biting density of An. minimus s.l. was found in human bait collection as well as animal bait collection after the insecticide spray. In all of the three villages, the average density after insecticide spray was significantly lower than that observed before the spray. The effects of Deltamethrin on An. minimus s.l. density was found only in one village out of the three treated villages. A significant decrease in parous rate after insecticide spray was found in all the villages sprayed with Bifenthrin, whereas no significant changes were observed in control villages. The average parous rate in the villages treated with Deltamethrin became significantly higher after the insecticide spray. These results clearly suggested that the residual spray of Bifenthrin (25 mg/m2) was more effective than Deltamethrin (20 mg/m2).
Keywords: residual spray / Bifenthrin / Deltamethrin / Anopheles minimus / Thailand
URI: http://hdl.handle.net/10069/22438
ISSN: 03042146
Rights: Japanese Society of Tropical Medicine
Type: Journal Article
Text Version: publisher
Appears in Collections:Articles in academic journal

Citable URI : http://hdl.handle.net/10069/22438

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