Annecke, D.P., Burger, W.A., & Coetzee, H. 1976 Pest status of Cactoblastis cactorum (Berg.) (Lepidoptera: Phycitidae) and Dactyloplus opuntiae (Cockerell) (Coccoidea: Dactylopiidae) in spineless Opuntia plantations in South Africa.. Journal of the Entomological Society of Southern Africa 39: 111-116.

Notes: Damage; control recommendations.