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Response of Triatoma infestans to pour-on cypermethrin applied to chickens under laboratory conditions
Amelotti, Ivana; Catalá, Silvia S; Gorla, David E.
  • Amelotti, Ivana; Centro Regional de Investigaciones Científicas y Transferencia Tecnológica de La Rioja. Anillaco. AR
  • Catalá, Silvia S; Centro Regional de Investigaciones Científicas y Transferencia Tecnológica de La Rioja. Anillaco. AR
  • Gorla, David E; Centro Regional de Investigaciones Científicas y Transferencia Tecnológica de La Rioja. Anillaco. AR
Mem. Inst. Oswaldo Cruz ; 104(3): 481-485, May 2009. graf, tab
Article in English | LILACS | ID: lil-517014
ABSTRACT
This article reports the effects of a pour-on formulation of cypermethrin (6 percent active ingredient) applied to chickens exposed to Triatoma infestans, the main vector of Chagas disease in rural houses of the Gran Chaco Region of South America. This study was designed as a completely random experiment with three experimental groups and five replicates. Third instar nymphs were fed on chickens treated with 0, 1 and 2 cc of the formulation. Nymphs were allowed to feed on the chickens at different time intervals after the insecticide application. Third-instar nymphs fed on treated chickens showed a higher mortality, took less blood during feeding and had a lower moulting rate. The mortality rate was highest seven days after the insecticide solution application and blood intake was affected until 30 days after the application of the solution.
Subject(s)

Full text: Available Index: LILACS (Americas) Main subject: Pyrethrins / Triatoma / Chickens / Insect Vectors / Insecticides Limits: Animals Language: English Journal: Mem. Inst. Oswaldo Cruz Journal subject: Tropical Medicine / Parasitology Year: 2009 Type: Article Affiliation country: Argentina Institution/Affiliation country: Centro Regional de Investigaciones Científicas y Transferencia Tecnológica de La Rioja/AR

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Full text: Available Index: LILACS (Americas) Main subject: Pyrethrins / Triatoma / Chickens / Insect Vectors / Insecticides Limits: Animals Language: English Journal: Mem. Inst. Oswaldo Cruz Journal subject: Tropical Medicine / Parasitology Year: 2009 Type: Article Affiliation country: Argentina Institution/Affiliation country: Centro Regional de Investigaciones Científicas y Transferencia Tecnológica de La Rioja/AR