Twentieth Australasian Weeds Conference New and revised plant declarations in South Australia David A. Cooke, Michaela A. Heinson and John G. Virtue Biosecurity SA, GPO Box 1671, Adelaide, South Australia 5001, Australia (
[email protected]) Summary South Australia has conducted a com- • Notification – The presence and locations of the prehensive review of plant declarations under the declared plant must be reported to the regional Natural Resources Management Act 2004. Various NRM Authority by the owner of the land. sections of this Act allow for prohibition of sale and • Control – Land owners are required to take action road transport of declared plants, legal requirements to destroy or control certain declared plant species for landholder control and formal notification of their present on their property. NRM Authorities are presence. Declarations are based on risk assessment also responsible for controlling these declared and policies adopted for each species. The review plants on road reserves, and may have the power has occurred over four phases with 155 weed policies to recover costs of control from the adjoining revised or newly developed. Policies cover broad goals landowners. and objectives, state risk assessment and regional The first comprehensive review of plants declared management actions. under weeds legislation in South Australia in 20 years, There are currently 140 declared plants in SA with as described in Heinson et al. (2014), commenced in another five currently under consideration. These are 2010. The review was split into phases and is now in alisma (Alisma lanceolatum With.), coastal tea-tree its fourth and final phase. For each phase a revised (Leptospermum laevigatum (Gaertn.) F.Muell.), dune or new, state-level policy was prepared for a plant.