Image: Ian Clarke CC BY-NC-SA 4.0
Landholder Resources

Controlling Serrated Tussock

Serrated Tussock (Nassella trichotoma) is a species of grass introduced to Victoria from South America. Forming long-lived tussocks, it can rapidly establish in disturbed grassy areas and exclude all other species. Serrated Tussock is a declared weed in Victoria and landholders must take reasonable steps to control and eradicate it if found on your property. 

This information is relevant across Victoria. Notable areas of Serrated Tussock are around Melbourne, Ballarat and Geelong.  

  • Serrated Tussock grows in a variety of habitats and tolerates a range of conditions 
  • It can completely dominate habitat and pasture within seven years 
  • It is a major threat to grazing areas as it is unpalatable to livestock 
  • It is a major threat to critically endangered native grasslands 
  • Serrated Tussock spreads via wind-blown seeds which can also attach to livestock, clothing and vehicles 
  • It establishes particularly well in disturbed habitat or overgrazed pasture. It does not establish well in shaded areas 
  • Grasses can be difficult to identify, and Serrated Tussock is similar to many indigenous grass species. Check with an expert or your Trust for Nature manager if you are unsure about identification 
  • Follow chemical use regulations when using herbicide  

Prevention 

  • Preventing spread of Serrated Tussock is the most cost-effective method for managing Serrated Tussock 
  • Manage movement of livestock, vehicles and people in areas with Serrated Tussock 
  • Ensure vehicles, tools and clothing are clean if working in areas with Serrated Tussock 

Chemical control 

  • Using herbicide such as glyphosate to spray onto growing plants 
  • Spray plants before seeding (late spring-summer) 
  • Vary use of types of herbicides such as to prevent plants developing resistance 

Physical control 

  • Small plants and patches can be removed using a mattock 
  • Monitor areas where Serrated Tussock is present and being controlled 
  • Follow-up control where needed 
  • Maintaining and improving habitat can prevent Serrated Tussock establishing 
  • Revegetate trees in areas where they have been lost to increase shade 
  • Work with other landholders and community groups to control Serrated Tussock across landscape 

This information is relevant across Victoria. Notable areas of Serrated Tussock are around Melbourne, Ballarat and Geelong.  

  • Serrated Tussock grows in a variety of habitats and tolerates a range of conditions 
  • It can completely dominate habitat and pasture within seven years 
  • It is a major threat to grazing areas as it is unpalatable to livestock 
  • It is a major threat to critically endangered native grasslands 
  • Serrated Tussock spreads via wind-blown seeds which can also attach to livestock, clothing and vehicles 
  • It establishes particularly well in disturbed habitat or overgrazed pasture. It does not establish well in shaded areas 
  • Grasses can be difficult to identify, and Serrated Tussock is similar to many indigenous grass species. Check with an expert or your Trust for Nature manager if you are unsure about identification 
  • Follow chemical use regulations when using herbicide  

Prevention 

  • Preventing spread of Serrated Tussock is the most cost-effective method for managing Serrated Tussock 
  • Manage movement of livestock, vehicles and people in areas with Serrated Tussock 
  • Ensure vehicles, tools and clothing are clean if working in areas with Serrated Tussock 

Chemical control 

  • Using herbicide such as glyphosate to spray onto growing plants 
  • Spray plants before seeding (late spring-summer) 
  • Vary use of types of herbicides such as to prevent plants developing resistance 

Physical control 

  • Small plants and patches can be removed using a mattock 
  • Monitor areas where Serrated Tussock is present and being controlled 
  • Follow-up control where needed 
  • Maintaining and improving habitat can prevent Serrated Tussock establishing 
  • Revegetate trees in areas where they have been lost to increase shade 
  • Work with other landholders and community groups to control Serrated Tussock across landscape 

Safety
Always wear appropriate personal protective equipment (PPE) when undertaking land management. Follow all label instructions on equipment and local regulations. Be mindful of weather conditions. Do not conduct land management on days of extreme or catastrophic fire danger or total fire ban. 
Further information
If you have a conservation covenant, please consult with your Trust for Nature regional staff member to ensure land management activities are in line with your covenant deed.

For further advice and support, please contact Trust for Nature

Phone:(03) 8361 5800
Email:  trustfornature@tfn.org.au
Disclaimer
Trust for Nature and its employees do not guarantee that the publication is without flaw of any kind or is wholly appropriate for your particular purposes and therefore disclaims all liability for any error, loss or other consequence which may arise from you relying on any information in this publication