Martin Thibaud, Chandre Fabrice, Ochou Ochou Germain, Vaissayre Maurice, Fournier Didier. 2002. Pyrethroid resistance mechanisms in the cotton bollworn Helicoverpa armigera (Lepidoptera: Noctuidae) from West Africa. Pesticide Biochemistry and Physiology (74) : 17-26.
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Résumé : In West Africa, the cotton bollworm Helicoverpa armigera has recently developed resistance to deltamethrin and cypermethrin. Resistance mechanisms of the strain BK99R9 collected in Bouaké, Ivory Coast in 1999 and selected with deltamethrin were investigated by comparison with a susceptible strain BK77 collected in the same area in 1977. Several approaches were performed: evaluation of the cross-resistance spectrum to various pyrethroids and DDT, effect of a synergist, and by determination of the biochemical characteristics of three enzyme systems (esterases, glutathione-S-transferases, and mixed function oxidases). Deltamethrin resistance in BK99R9 was correlated to an increase of mixed function oxidase. Enhanced monooxygenase levels were then confirmed in several H. armigera field strains collected in cotton areas of West Africa from 1999 to 2001.
Mots-clés Agrovoc : Gossypium, insecte nuisible, Helicoverpa armigera, résistance aux pesticides, pyréthrine de syntèse
Mots-clés géographiques Agrovoc : Afrique occidentale
Classification Agris : H10 - Ravageurs des plantes
Auteurs et affiliations
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Martin Thibaud, CIRAD-CA-COTON (CIV)
ORCID: 0000-0002-4915-4436
- Chandre Fabrice, IRD (CIV)
- Ochou Ochou Germain, CNRA (CIV)
- Vaissayre Maurice, CIRAD-CA-COTON (FRA)
- Fournier Didier, Université Toulouse III Paul Sabatier (FRA)
Autres liens de la publication
Source : Cirad - Agritrop (https://agritrop.cirad.fr/512331/)
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