Introduction to aquatic weed management in Australia Andrew Petroeschevsky NSW Department of Primary...

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Introduction to aquatic weed management in Australia Andrew Petroeschevsky NSW Department of Primary Industries National Aquatic Weeds Management Group

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Page 1: Introduction to aquatic weed management in Australia Andrew Petroeschevsky NSW Department of Primary Industries National Aquatic Weeds Management Group.

Introduction to aquatic weed management in Australia

Andrew Petroeschevsky

NSW Department of Primary Industries

National Aquatic Weeds Management Group

Page 2: 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)

Page 3: Introduction to aquatic weed management in Australia Andrew Petroeschevsky NSW Department of Primary Industries National Aquatic Weeds Management Group.

What are Australia’s worst aquatic weeds?

Weeds of National Significance

Alligator weed, cabomba, salvinia

National Alert List

Horsetails, lagarosiphon, senegal tea

Other Water hyacinth, water lettuce, dense waterweed.

Page 4: Introduction to aquatic weed management in Australia Andrew Petroeschevsky NSW Department of Primary Industries National Aquatic Weeds Management Group.

Alligator Weed

Status

100+ infestations around Melbourne

Outbreak near Albury, NSW of high concern

Page 5: Introduction to aquatic weed management in Australia Andrew Petroeschevsky NSW Department of Primary Industries National Aquatic Weeds Management Group.

Alligator weed

Page 6: Introduction to aquatic weed management in Australia Andrew Petroeschevsky NSW Department of Primary Industries National Aquatic Weeds Management Group.
Page 7: Introduction to aquatic weed management in Australia Andrew Petroeschevsky NSW Department of Primary Industries National Aquatic Weeds Management Group.

Cabomba

Status Recently removed from sale in

Victoria 2 Known sites (Lake Nagambie

& Broken River) Previous infestation in

Gippsland destroyed No registered herbicides

available

Page 8: Introduction to aquatic weed management in Australia Andrew Petroeschevsky NSW Department of Primary Industries National Aquatic Weeds Management Group.
Page 9: Introduction to aquatic weed management in Australia Andrew Petroeschevsky NSW Department of Primary Industries National Aquatic Weeds Management Group.
Page 10: Introduction to aquatic weed management in Australia Andrew Petroeschevsky NSW Department of Primary Industries National Aquatic Weeds Management Group.

Salvinia

Status 15,000 hectares Most infestations under

biocontrol Major outbreak in Yellow Water –

Kakadu Occasionally found in nurseries &

water gardens

Page 11: Introduction to aquatic weed management in Australia Andrew Petroeschevsky NSW Department of Primary Industries National Aquatic Weeds Management Group.
Page 12: Introduction to aquatic weed management in Australia Andrew Petroeschevsky NSW Department of Primary Industries National Aquatic Weeds Management Group.

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jameslitsinger.files.wordpress.com · Web view2016/11/20 · control with herbicides, algae, submersed vascular weeds, floating weeds, emersed and marginal weeds, effects of aquatic-weed

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Aquatic Invasive Weeds in the Delta: Impact and Controlsagri.senate.ca.gov/sites/sagri.senate.ca.gov/files/Transcript... · 5/9/2013 · Aquatic Invasive Weeds in the Delta: Impact

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9 Northland Lakes · 2020. 8. 13. · 9.2 Pressures Affecting the Lakes of Northland 9.2.1 Aquatic Weeds Aquatic weeds are a major threat to Northland’s lakes. Native aquatic plant

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