Eleventh Australian Weeds Conference Proceedings

Summary This paper assesses the changes in weed man-agement technologies for cropping that have occurred over the last twelve years. Information has been sourced from papers from the last four Australian Weeds Confer-ences and the First International Weed Control Con-gress. Management technologies have been placed into four categories. Bio-technologies/control, cultural/mechanical management technology, computer technology modelling and synthesized herbicides and within these broad cat-egories there are a number of sub-categories (Table 1). BIO-TECHNOLOGIES/CONTROL Biological control The number of papers on new or ex-isting agents for biological control more than doubled at the 1990 conference and has remained static since then. Projects have included work on agents for Emex spp., crowsfoot grass (Eleusine indica Gaertn.), Patersons curse (Echium plantagineum L.), silverleaf nightshad