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Validation of harmonic radar tags to study movement of Chinese citrus fly

Published online by Cambridge University Press:  03 January 2012

Lian-You Gui
Affiliation:
Engineering Research Center of Wetland Agriculture in the Middle Reaches of the Yangtze River of Ministry of Education, Yangtze University, Hubei 434025, China; and College of Agriculture, Yangtze University, Hubei 434025, China
Huang Xiu-Qin
Affiliation:
Engineering Research Center of Wetland Agriculture in the Middle Reaches of the Yangtze River of Ministry of Education, Yangtze University, Hubei 434025, China
Li Chuan-Ren
Affiliation:
Engineering Research Center of Wetland Agriculture in the Middle Reaches of the Yangtze River of Ministry of Education, Yangtze University, Hubei 434025, China
G. Boiteau*
Affiliation:
Agriculture and Agri-Food Canada, Potato Research Centre, 850 Lincoln Road, P.O. Box 20280, Fredericton, NB, E3B 4Z7 Canada
*
1Corresponding author (e-mail: Gilles.Boiteau@agr.gc.ca).

Abstract

Effective management of Chinese citrus fly, Bactrocera minax (Enderlein) (Diptera: Tephritidae), is hindered by a lack of knowledge about its movements. We determined the feasibility of using harmonic radar technology to measure natural dispersal of B. minax. Tests demonstrated that 3.8 mg tags representing 8% of average insect weight had no visible impact on the ability of flies to takeoff and maintain flight. More than 86% of flies retained their tags for at least 5 days, and there was no significant mortality. Neither adhesive tested for tag mounting affected the survival of flies. Presence of the vertical dorsal tag did not prevent or hamper vertical movement. Together, results validate the use of tags weighing up to 3.8 mg for radar or telemetric study of dispersal ecology of B. minax.

Résumé

La gestion efficace de la mouche chinoise des agrumes, Bactrocera minax (Enderlein), (Diptera : Tephritidae), est limitée par un manque de connaissances sur le mouvement de cet insecte nuisible. Le but de cette étude était de déterminer s'il serait possible d'envisager utiliser la technologie du radar harmonique avec cette espèce de mouche sans effets négatifs sur le déplacement lui-même. Les essais ont révélé que des antennes électroniques de 3,8 mg représentant 8% du poids moyen des insectes n'ont pas d'impact visible sur la capacité de l'insecte à décoller et à se maintenir en vol. Plus de 86 % des mouches ont conservé leurs antennes électroniques pendant au moins 5 jours sans mortalité significative. Les deux types de colle testés pour fixer l'antenne à la mouche n'ont pas eu d'incidence sur la survie des insectes. La présence d'une antenne électronique verticale dorsale n'a pas empêché ou gêné le déplacement de l'insecte. Ensemble, ces résultats valident l'utilisation d'antennes électroniques pesant jusqu'à 3,8 mg comme marqueur pour étudier l'écologie du mouvement de B. minax avec un radar harmonique ou avec d'autres méthodes télémétriques.

Type
Techniques
Copyright
Copyright © Entomological Society of Canada 2011

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