introduction to aquatic weed management in australia andrew petroeschevsky nsw department of primary...
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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](https://reader036.vdocuments.us/reader036/viewer/2022062308/56649ce05503460f949a9dfb/html5/thumbnails/1.jpg)
Introduction to aquatic weed management in Australia
Andrew Petroeschevsky
NSW Department of Primary Industries
National Aquatic Weeds Management Group
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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](https://reader036.vdocuments.us/reader036/viewer/2022062308/56649ce05503460f949a9dfb/html5/thumbnails/3.jpg)
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.
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Alligator Weed
Status
100+ infestations around Melbourne
Outbreak near Albury, NSW of high concern
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Alligator weed
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Cabomba
Status Recently removed from sale in
Victoria 2 Known sites (Lake Nagambie
& Broken River) Previous infestation in
Gippsland destroyed No registered herbicides
available
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Salvinia
Status 15,000 hectares Most infestations under
biocontrol Major outbreak in Yellow Water –
Kakadu Occasionally found in nurseries &
water gardens
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