文章基本信息

标题：Development of organophosphorus resistance in Indian strains of Aedes aegypti (L.)
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作者：B. V. R. Madhukar ; M. K. K. Pillai
期刊名称：Bulletin of the World Health Organization
印刷版ISSN：0042-9686
出版年度：1970
卷号：43
期号：5
页码：735-742
语种：English
出版社：World Health Organisation
摘要：Populations of the yellow-fever mosquito, Aedes aegypti, have developed resistance to cholorinated hydrocarbons in many parts of the world, but not to organophosphorus insecticides. Seven Indian strains of Ae. aegypti were found to be tolerant to DDT and highly susceptible to certain organophosphorus compounds such as Abate, Dursban, fenthion and fenitrothion. Hence selection studies were started with these organophosphorus compounds. Laboratory selections on these strains for 20 generations with Abate, Dursban, malathion, fenthion and fenitrothion increased the tolerance of the F₂₀ larvae to these insecticides by 2.4 times, 3.7 times, 3 times, 5.6 times and 2 times, respectively. The dosage—mortality lines of the successive generations were steep and parallel, suggesting these were instances of tolerance and not of resistance. In contrast, DDT selection showed rapid changes in dosage—mortality lines, indicating the development of resistance. The organophosphorus selected strains generally showed only a 2-3-fold increase in cross-tolerance to other organophosphorus compounds. Full text Full text is available as a scanned copy of the original print version. Get a printable copy (PDF file) of the complete article (928K), or click on a page image below to browse page by page. Links to PubMed are also available for Selected References . 735 736 737 738 739 740 741 742