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FEMALE CERATITIS CAPITATA (DIPTERA: TEPHRITIDAE) CAPTURE IN A DRY TRAP BAITED WITH A FOOD-BASED SYNTHETIC ATTRACTANT IN AN ARGAN FOREST IN MOROCCO. PART I: LOW POPULATION FIELD TEST

Published online by Cambridge University Press:  31 May 2012

A. Bakri*
Affiliation:
Unit of Biological Control of Insects, Faculty of Science Semlalia, University of Cadi Ayyad, Marrakech, Morocco.
H. Hadis
Affiliation:
Unit of Biological Control of Insects, Faculty of Science Semlalia, University of Cadi Ayyad, Marrakech, Morocco.
N.D. Epsky
Affiliation:
Center for Medical, Agricultural and Veterinary Entomology, United States Department of Agriculture, Agricultural Research Service, Gainesville, Florida, USA 32604
R.R. Heath
Affiliation:
Center for Medical, Agricultural and Veterinary Entomology, United States Department of Agriculture, Agricultural Research Service, Gainesville, Florida, USA 32604
J. Hendrichs
Affiliation:
Insect and Pest Control Section, International Atomic Energy Agency, P.O. Box 100, A-1040 Vienna, Austria.
*
1 Author to whom all correspondence should be addressed.

Abstract

Field tests were conducted in an argan forest in Morocco to evaluate the performance of a cylindrical dry trap and food-based synthetic attractant (FA) for monitoring the Mediterranean fruit fly (medfly), Ceratitis capitata (Weidemann). This female-targeted trapping system was compared with Jackson traps baited with trimedlure (TML), a male-targeted trapping system. TML-baited traps attracted significantly more males than FA-baited traps (91.4 ± 13.01 and 5.0 ± 0.75 males, respectively), and the FA-baited traps captured significantly more females than did TML-baited traps (9.3 ± 1.93 and 0.1 ± 0.04 females, respectively). For the first month of the field trial, the ratio of mature females to immature females captured in the FA-baited traps was approximately equal, but more immature females were captured in the second month. FA-baited traps were less specific and captured significantly more nontarget flies than did TML-baited traps.

Résumé

Au Maroc, dans la forêt d’argane, Argania spinosa (Linnée) (Sapotacea) a été effectué l’évaluation de la performance des pièges cylindriques avec un attractant à base alimentaire (FA) pour la détection et la surveillance de la mouche méditerranéenne des fruits Ceratitis capitata (Wiedemann). Ces nouveaux pièges destinés à capturer les femelles sont comparés avec les pièges Jackson appâtés de Trimedlure (TML). Les pièges appâtés avec TML capturaient significativement plus de mâles que les pièges appâtés de FA (91,4 ± 13,01 et 5,0 ± 0,75 mâles, respectivement). Cependant, le pièges à FA capturaient plus de femelles que les pièges Jackson (9,3 ± 1,93 et 0,1 ± 0,04 femelles, respectivement). Durant le premier mois des expériences, le rapport des femelles matures – femelles immatures capturées par les pièges à appât alimentaire était approximativement égal à 1. Mais, d’avantage de femelles immatures ont été capturées dans le mois suivant. Les pièges à appât alimentaire étaient moins spécifiques que les pièges Jackson et capturaient significativement d’avantage plus de mouches non-cibles.

Type
Articles
Copyright
Copyright © Entomological Society of Canada 1998

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