The control of Rastrococcus invadens Williams (Hemiptera: Pseudococcidae) in Togo by the introduction of Gyranusoidea tebygi Noyes (Hymenoptera: Encyrtidae).
Agricola U., Agounké D., Fischer H. U., Moore D.
Author Affiliation: Institut für Phytopathologie und Angewandte Zoologie, Justus-Liebig-Universität, Ludwigstrasse 23, 6300 Giessen, German Federal Republic.
Bulletin of Entomological Research 79 : 671-678
Abstract : Rastrococcus invadens 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. 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.