Titre du document / Document title
Pesticide avoidance behavior in Anopheles albimanus, a malaria vector in the Americas
Auteur(s) / Author(s)
CHAREONVIRIYAPHAP T. (1) ;
ROBERTS D. R. (2) ;
ANDRE R. G. (2) ;
HARLAN H. J. ;
MANGUIN S. (4) ;
BANGS M. J. (2) ;
Affiliation(s) du ou des auteurs / Author(s) Affiliation(s)
(1) Kampheangsaen Campus, Kasetsart University, Faculty of Liberal Arts and Sciences, Nakhon Prathom 73140, THAILANDE
(2) Department of Preventive Medicine and Biometrics, Uniformed Services University of the Health Sciences, 4301 Jones Bridge Rd., Bethesda, MD 20814-4799, ETATS-UNIS
(4) Laboratoire de Lutte Contre Les Insectes Nuisibles (L.I.N.), 911 Ave. Agropolis, B.P. 5045, 34032 Montpellier, FRANCE
Résumé / Abstract
The behavioral responses of 4 populations of Anopheles albimanus females to DDT, permethrin, and deltamethrin were characterized in excito-repellency tests. One test population (ST) from El Salvador has been maintained as a colony for 20 years. A second population (ES) from Guatemala was colonized in 1992. Third and fourth populations consisted of field-caught specimens from Toledo District (TO) of southern Belize in 1994 and Corozal District (CO) of northern Belize, respectively. Females of ES, TO, and CO populations rapidly escaped from direct contact with treated surfaces for each of the 3 insecticides. Similarities in escape responses of insecticide-resistant (ES) versus insecticide-susceptible populations (TO, CO) suggest that there is no relationship between physiological and behavioral responses of An. albimanus populations to DDT, permethrin, and deltamethrin. Females from all but the ST colony escaped in greater numbers from chambers without direct contact with treated surfaces than from control chambers (P < 0.05). Few females from the ST colony escaped from test chambers, regardless of which insecticide was used or whether contact was allowed, indicating that the ST colony has lost its capability to respond to insecticides. Repellent responses were significant; but they were not pronounced in 30-min exposures, and they were very pronounced in 4-h exposures. We conclude that irritant and repellent responses of malaria vectors to insecticides are important components of malaria control operations.
Revue / Journal Title
Journal of the American Mosquito Control Association
ISSN
8756-971X
CODEN JAMAET
Source / Source
1997, vol. 13, n
o2, pp. 171-183 (28 ref.)
Langue / Language
Anglais
Editeur / Publisher
American Mosquito Control Association, Mount Laurel, NJ, ETATS-UNIS
(1985)
(Revue)
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Localisation / Location
INIST-CNRS, Cote INIST : 9267, 35400006823364.0110
Nº notice refdoc (ud4) : 2824161
