The former Adelaide and Mt Lofty Ranges NRM Board and Green Adelaide has made a number of training videos for volunteers. They cover how to control  Broom, Olives, Blackberry, Gorse, Caltrop, Bridal creeper, Cape Tulip and Gazania. They are intended for Friends groups and should not be distributed outside Friends of Parks SA. https://friendsofparkssa.org.au/wp-content/uploads/2020/09/AMLR-videos-for-Sedge.pdf