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Introduction to aquatic weed management in Australia. Andrew Petroeschevsky NSW Department of Primary Industries National Aquatic Weeds Management Group. Legislation and responsibilities. State legislation Differing levels of control categories Eradicate Control/contain/suppress
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Introduction to aquatic weed management in Australia Andrew Petroeschevsky NSW Department of Primary Industries National Aquatic Weeds Management Group
Legislation and responsibilities • State legislation • Differing levels of control categories • Eradicate • Control/contain/suppress • Ban from sale (environmental weeds) • Responsibility for control – Vic DPI or Landholders • 30+ aquatic plant species declared in Australia (approx 10 in Vic)
Alligator Weed Status 100+ infestations around Melbourne Outbreak near Albury, NSW of high concern
Cabomba Status • Recently removed from sale in Victoria • 2 Known sites (Lake Nagambie & Broken River) • Previous infestation in Gippsland destroyed • No registered herbicides available
Salvinia Status • 15,000 hectares • Most infestations under biocontrol • Major outbreak in Yellow Water – Kakadu • Occasionally found in nurseries & water gardens