Invasive Species Compendium

Detailed coverage of invasive species threatening livelihoods and the environment worldwide

Abstract

The parasitoids of Syllepte derogata (Fabricius, 1775) (Lepidoptera, Crambidae) in Togo.

Abstract

Thirteen species of primary parasitoids of the pyralid Syllepte derogata, and 7 hyperparasitoids, were recorded in cotton fields in Togo in 1988-90. The same species were encountered in the north and south of the country. The major primary parasitoids were the braconids Apanteles sagax and A. syleptae in larvae, and the ichneumonid Xanthopimpla punctata and chalcidids in the genus Brachymeria in pupae. The commonest hyperparasitoid was the eulophid Nesolynx phaeosoma. In 1988-90 larval parasitism averaged 3.4-12.5%, pupal parasitism 21.5-35.4%. Hyperparasitoids reduced the effectiveness of parasitoids, causing 14.4-77.0% of cocoon clusters of Apanteles.