%0 Journal Article %T Host‐plant affinities of two biotypes of Dactylopius opuntiae (Homoptera: Dactylopiidae): enhanced prospects for biological control of Opuntia stricta (Cactaceae) in South Africa %A Volchansky, C. R. %A Hoffmann, J. H. %A Zimmermann, H. G. %J Journal of Applied Ecology %V 36 %N 1 %@ 0021-8901 %D 1999-02-01 %I Wiley Subscription Services, Inc., A Wiley Company %~ DeepDyve