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Please use this identifier to cite or link to this item: http://hdl.handle.net/1807/5781

Title: Susceptibilidad a insecticidas piretroides en cepas de campo de Rhodnius prolixus Stål (Hemiptera: Reduviidae) de Venezuela
Authors: Molina de Fernández, Darjaniva
Vivas, Ana Soto
Barazarte, Hormodio
Keywords: Chagas' disease, deltamethrin, lambdacyhalothrin, resistance, vector.
Deltametrina, enfermedad de Chagas, lambdacyalotrina, resistencia, vector.
Issue Date: 31-Dec-2004
Publisher: Sociedad Venezolana de Entomologia
Citation: Entomotropica (ISSN: 1317-5262) Vol 19 Num 1
Abstract: MOLINA DE FERNÁNDEZ D, SOTOV A, BARAZARTE H. 2004. Susceptibility to pyrethroid insecticides in strains of field caught Rhodnius prolixus Stål (Hemiptera: Reduviidae) from Venezuela. Entomotropica 19(1):1-5. A study was carried out to determine susceptibility to insecticides in strains of field caught Rhodnius prolixus, the most important vector of Chagas' disease in Venezuela. Insects were treated by topical applications of 0.5 ml acetone solutions of the pyrethoid insecticides, lambdacyhalothrin and deltamethrin at different doses. The resistance ratio for each insecticide was calculated as the quotient of the LD50 value for the field derived colony divided by the LD50 value obtained for the corresponding susceptible "Chagas" strain. All field strains showed susceptibility to evaluated pyrethroids. Strains from Barinas, Cojedes, Lara and Portuguesa were susceptible to deltamethrin with resistance ratio of 0.2; 0.4; 0.1 and 0.7X, respectively. Lambdacyhalothrin was evaluated for the Barinas, Cojedes and Portuguesa strains, and showed resistance ratios, between 0.3 and 0.7.
URI: http://hdl.handle.net/1807/5781
Other Identifiers: http://www.bioline.org.br/abstract?id=em04005
Rights: Copyright 2004 - Sociedad Venezolana de Entomología
Appears in Collections:Bioline International Legacy Collection

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