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Memórias do Instituto Oswaldo Cruz
Fundação Oswaldo Cruz, Fiocruz
ISSN: 1678-8060
EISSN: 1678-8060
Vol. 97, No. 2, 2002, pp. 199-202
Bioline Code: oc02037
Full paper language: English
Document type: Research Article
Document available free of charge

Memórias do Instituto Oswaldo Cruz, Vol. 97, No. 2, 2002, pp. 199-202

 en SHORT COMMUNICATION - Observations on the Domestic Ecology of Rhodnius ecuadoriensis check for this species in other resources (Triatominae)
F Abad-Franch; HM Aguilar V; A Paucar C; ES Lorosa & F Noireau

Abstract

Rhodnius ecuadoriensis check for this species in other resources infests peridomiciles and colonises houses in rural southern Ecuador. Six out of 84 dwellings (7%) surveyed in a rural village were infested (78 bugs/infested domicile; 279 bugs were collected in a single dwelling). Precipitin tests revealed R. ecuadoriensis fed on birds (65%), rodents (31%), marsupials (8%), and humans (15%) - mixed bloodmeals detected in 37.5% of individual samples. Trypanosoma cruzi from opossums and rodents may thus be introduced into the domestic cycle. Wasp parasitoidism was detected in 6.5% of 995 R. ecuadoriensis eggs (only in peridomestic habitats). Control strategies should integrate insecticide spraying (indoors and peridomestic), better management of poultry, and housing improvements. A possible inefficacy of Malathion is reported.

Keywords
Rhodnius ecuadoriensis - ecology - feeding - Chagas disease - control - Ecuador

 
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