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Evaluation of sticky panels to monitor populations of Glossina austeni (Diptera: Glossinidae) on Unguja island of Zanzibar

Published online by Cambridge University Press:  10 July 2009

Marc J.B. Vreysen ,
Issa S. Khamis  and
André M.V. Van der Vloedt
Marc J.B. Vreysen*
Affiliation:
IAEA, Division of Technical Co-operation Programmes, Vienna, Austria, ℅ Ministry of Agriculture, Department of Livestock Development, Zanzibar, United Republic of Tanzania
Issa S. Khamis
Affiliation:
Ministry of Agriculture, Department of Livestock Development, Zanzibar, United Republic of Tanzania
André M.V. Van der Vloedt
Affiliation:
Joint FAO/IAEA Division of Nuclear Techniques in Food and Agriculture, Insect and Pest Control Section, IAEA, Vienna, Austria
*
M.J.B. Vreysen, IAEA, Division of Technical Co-operation Programmes, PO Box 100, Vienna, Austria.
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Abstract

Monitoring of Glossina austeni Newstead populations in the forested areas of Unguja island of Zanzibar has since November 1990 routinely been carried out with the sticky panel trap because commonly used tsetse traps (Biconical, Epsilon, F3) have proved to be unsuccessful in catching G. austeni. Initial studies on the catching ability of various types of sticky panels for G. austeni indicated that the monopanel was as efficient in catching flies as the 3-dimensional version and the smaller legpanel. No significant differences in catch rate and sex ratio were observed with monopanels in various colours and colour combinations. Legpanels coloured white on one panel side and blue on the other side caught significantly more flies compared with other colour combinations, but female flies were under-sampled (32%). The type of sticky material applied on the panel influenced significantly the catch rate and female ratio. During long-term trapping with baby blue and white monopanels, females were under-sampled (38–46%) except when polyisobutyleneLMW was used as sticky material. Analysis of the age composition of the sampled G. austeni females revealed that tenerals and nulliparous were well represented (11–24%). More than 20% of the trapped females were older flies, i.e. females with four or more ovulations, but this percentage dropped to 10% when Tanglefoot was used as sticky material.

Type
Review Article
Information
Bulletin of Entomological Research , Volume 86 , Issue 3 , June 1996 , pp. 289 - 296
Copyright
Copyright © Cambridge University Press 1996

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