Public comment has been invited on draft national strategies for recently declared Weeds of National Significance: Asparagus weeds, Madeira vine and the aquatic weed Sagittaria.

Weeds of National Significance Coordinator for Tasmania, Michael Noble, said the strategies had been developed to guide national coordination of the weeds.

Mr Noble urged Tasmanians concerned about weeds to read the plans and provide feedback.

"Weeds are a major threat to the natural environment and arable land," he said.

"These strategies are a first step to tackle issues nationally in a coordinated manner. They will set the direction for national management of these and other new Weeds of National Significance for the next five years."

Asparagus weeds, which were introduced from South Africa as garden plants, have become a problem in some parts of Tasmania, including King and Flinders islands.

Madeira vine is a semi-succulent climbing vine introduced from South America. It has been found in Hobart, Launceston and Burnie and has the potential to become a serious weed in Tasmania.

There are no known naturalised Sagittaria populations in Tasmania but it has a recognised potential to establish and spread in waterways such as the Tamar catchment.

The draft Weed of National Significance (WoNS) Asparagus Weeds Strategic Plan is online at www.weeds.org.au/WoNS/asparagusweeds/

The draft Weed of National Significance (WoNS) Madeira Vine Strategic Plan is online at www.weeds.org.au/WoNS/madeiravine/

The draft Weed of National Significance (WoNS) Sagittaria Strategic Plan is online at www.weeds.org.au/WoNS/sagittaria/

For more information contact Michael Noble on 03 6421 5100 or Michael.Noble@dpipwe.tas.gov.au