Environmental issues

Pests and weeds

Exotic vines and scramblers

 

Exotic vines and scramblers have significant adverse effects on biodiversity, and their invasion and establishment is listed as a key threatening process (KTP) in NSW.  In 2012, species under this KTP were listed as Weeds of National Significance (WoNS): asparagus weeds, cat’s claw creeper and Madeira vine.

Asparagus weeds are aggressive vines and scramblers that invade subtropical and temperate bushlands and coastal ecosystems of Australia. Cat’s claw creeper is now prevalent in tropical and subtropical regions of NSW and Queensland, particularly within riparian systems and rainforests. Madeira vine is usually found in tropical and subtropical regions of eastern Australia, where it has invaded rainforests, tall open forests, wet sclerophyll forests and riparian systems. However, it has also been recorded in milder temperate areas.

The Madeira vine beetle (Plectonycha correntina) has recently been made available as a biological control agent. The beetle has been released at numerous sites in Qld and NSW since 2011. Monitoring of the establishment, spread and damage of the beetle has been conducted, and a report and monitoring datasheets are now available.

Priorities for managing all widespread weeds, including these species, in their core infestation areas in NSW, have been developed.

National asparagus program

In 2000, bridal creeper was listed as a WoNS. In 2012, other asparagus weeds were listed and include:

  • Asparagus aethiopicus or ground asparagus
  • Asparagus africanus or climbing asparagus
  • Asparagus plumosus or climbing asparagus fern
  • Asparagus scandens or asparagus fern
  • Asparagus declinatus or bridal veil
  • Asparagus asparagoides or Western Cape form or Western Cape bridal creeper
Page last updated: 17 October 2013