. . "Botanical affinities; Exploration for manual enemies; Pre-introduction studies of selected species; The decision to introduce a species; What kinds of natural enemies are used for biological control of weeds?; What are the effects of natural enenies on host abundance?; Propagation, liberation, establishment and effects; Biological control of native weeds." . . . . . "Handbooks and manuals" . "Biological control of weeds a handbook for practitioners and students" . . "Biological control of weeds : a handbook for practitioners and students" . . . "Forno, I. W." . . . .