Invasive Species Compendium

Detailed coverage of invasive species threatening livelihoods and the environment worldwide

Abstract

Possibilities for the use of Ooencyrtus albicrus (Prinsloo) (Hym., Encyrtidae) in an integrated pest management approach against the coconut bug Pseudotheraptus wayi Brown (Hem., Coreidae) in Zanzibar.

Abstract

Ooencyrtus albicrus and Anastatus sp. are reported as egg parasitoids of Pseudotheraptus wayi on coconut palms in Zanzibar. Although there was a significant negative correlation between the population density of P. wayi and the rate of parasitism by O. albicrus, parasitism under natural conditions was not high enough to keep the coreid below the very low threshold levels of 0.14 or 0.28 bugs/palm. Studies on the biology and alternative hosts of O. albicrus, as well as the results of a test release, suggest a high potential of this parasitoid for the control of the coreid by mass release.