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The control of Rastrococcus invadens Williams (Hemiptera: Pseudococcidae) in Togo by the introduction of Gyranusoidea tebygi Noyes (Hymenoptera: Encyrtidae)

Published online by Cambridge University Press:  10 July 2009

U. Agricola ,
D. Agounké ,
H. U. Fischer  and
D. Moore
U. Agricola
Affiliation:
Institut für Phytopathologie und Angewandte ZoologieJustus-Liebig-UniversitätLudwigstrasse 23, D-6300 Giessen, German Federal Republic
D. Agounké
Affiliation:
Service de la Protection des Végétaux, B.P. 1263, Cacaveli, Lomé, Togo
H. U. Fischer
Affiliation:
Deutsche Gesellschaft für Technische Zusammenarbeit, B.P. 1263, Cacaveli, Lomé, Togo
D. Moore
Affiliation:
CAB International Institute of Biological ControlSilwood Park, Buckhurst Road, Ascot, Berks., SL5 7TA, UK
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Abstract

Rastrococcus invadens Williams was first noticed in Togo in 1981 and has since become a serious pest on many plants, especially mango and citrus. In June 1986, a programme for its biological control was begun, resulting in the introduction into Togo in October 1987 of an encyrtid parasitoid, Gyranusoidea tebygi Noyes. The parasitoid was reared under a simple system and releases were made from November 1987. The parasitoid established readily under a range of ecological conditions and produced significant control within the first year up to 100 km from each release point.

Type
Original Articles
Information
Bulletin of Entomological Research , Volume 79 , Issue 4 , November 1989 , pp. 671 - 678
Copyright
Copyright © Cambridge University Press 1989

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References

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