Zimmermann, H.G., Moran, V.C., & Hoffman, J.H. 1986 Insect herbivores as determinants of the present distribution and abundance of invasive cacti in South Africa.. The Ecology and Management of Biological Invasions in Southern Africa. Oxford University Press Cape Town 324

Keywords:

biological control

Notes: [Proceedings of the National Synthesis Symposium on the Ecology of Biological Invasions held in Stellenbosch, 27 to 29 November, 1985.] Species mentioned in this paper that have been introduced for biological control of weeds include Dactylopius austrinus, D. ceylonicus, D. opuntiae, D. tomentosus, Hypogeococcus festerianus and Eriococcus orariensis.