Serrated tussock
Nassella trichotoma
See it - Report it
Early detection is vital to stop Serrated tussock becoming established in South Australia.
If you see this weed, please report it to the National Pest Alert Hotline (Freecall) 1800 084 881.
Weed profile
Perennial
Grass
Reportable- Habitat: pastures
Impact
Competes with pastures. Not present in South Australia.
Description
- Perennial grass forming tusssocks.
- Leaves thread-like, tightly rolled, with fine serrations near the base.
- Loose, drooping flower heads.
- Seeds small with long awns.
Control options
flupropanate (745g/L)
Application Method: Boom spray
Application Rate: 1.5-2L/ha
Product Name: Tussock™
Herbicide Group: 0
Situation: Non-crop situations.
Timing: Boom spray, while actively growing, autumn to spring.
Comments: Add a non-ionic surfactant. A slow-working residual. Apply early in the season. If spraying late in the season add glyphosate for faster knockdown. Residues in the soil may suppress weeds and other susceptible species for one to two years.
Legal Status: PER 9792 (exp. 2025)
glyphosate (450g/L)
Application Method: Wiper
Application Rate: 2.6L/10L
Product Name: Roundup CT®
Herbicide Group: 9
Situation: Non-crop situations.
Timing: Wiper, while actively growing, autumn to spring.
Comments: Non selective, avoid contact with desirable plants.
Legal Status: PER 9792 (exp. 2025)
glyphosate (450g/L)
Application Method: Spot spray
Application Rate: 560-1000mL/100L
Product Name: Roundup CT®
Herbicide Group: 9
Situation: Non-crop situations.
Timing: Spot spray, while actively growing, autumn to spring.
Comments:
Use the lower rate on infertile lightly textured soils; use the higher rate on fertile basalt soils.
Non selective, avoid contact with desirable plants.
Legal Status: PER 9792 (exp. 2025)
flupropanate (745g/L) + glyphosate (450g/L)
Application Method: Boom spray
Application Rate: 1.5-2L + 250-420mL/ha
Product Name: Tussock™ + Roundup CT®
Herbicide Group: 0, 9
Situation: Non-crop situations.
Timing: Boom spray, while actively growing, autumn to spring.
Comments:
- Add a non-ionic surfactant.
- Apply glyphosate alone for seed set suppression; or for control mix flupropanate with glyphosate.
- Use higher rate if the weed is dense.
- Apply to fresh foliage.
- Slashing to promote fresh growth 2-3 weeks before spraying will increase effectiveness.
- Non selective, avoid contact with desirable plants. Residues in the soil may suppress weeds and other susceptible species for one to two years.
Legal Status: PER 9792 (exp. 2025)
flupropanate (745g/L)
Application Method: Spot spray
Application Rate: 100-200mL/100L
Product Name: Tussock™
Herbicide Group: 0
Situation: Non-crop situations.
Timing: Spot spray, while actively growing, autumn to spring.
Comments: Add a non-ionic surfactant. A slow-working residual. Apply early in the season. If spraying late in the season add glyphosate for faster knockdown. Residues in the soil may suppress weeds and other susceptible species for one to two years.
Legal Status: PER 9792 (exp. 2025)
Manual removal
Situation: Any.
Timing: Before seed set.
Comments: Grub individual plants. Monitor site and undertake follow up control until eradication has been achieved.
glyphosate (450g/L)
Application Method: Boom spray
Application Rate: 2.24-3.2L/ha
Product Name: Roundup CT®
Herbicide Group: 9
Situation: Non-crop situations.
Timing: Boom spray, while actively growing, autumn to spring.
Comments:
Use the lower rate on infertile lightly textured soils; use the higher rate on fertile basalt soils. Suppression only if serrated tussock plants are not actively growing with long green leaves.
Non selective, avoid contact with desirable plants.
Legal Status: PER 9792 (exp. 2025)
flupropanate (745g/L) + glyphosate (450g/L)
Application Method: Spot spray
Application Rate: 150-200mL + 270mL/100L
Product Name: Tussock™ + Roundup CT®
Herbicide Group: 0, 9
Situation: Non-crop situations.
Timing: Spot spray, while actively growing, autumn to spring.
Comments:
- Add a non-ionic surfactant.
- Apply glyphosate alone for seed set suppression; or for control mix flupropanate with glyphosate.
- Use higher rate if the weed is dense.
- Apply to fresh foliage.
- Slashing to promote fresh growth 2-3 weeks before spraying will increase effectiveness.
- Non selective, avoid contact with desirable plants.
Legal Status: PER 9792 (exp. 2025)
flupropanate (745g/L)
Application Method: Wiper
Application Rate: 500mL/10L
Product Name: Tussock™
Herbicide Group: 0
Situation: Non-crop situations.
Timing: Wiper, while actively growing, autumn to spring.
Comments: Add a non-ionic surfactant. A slow-working residual. Apply early in the season. If spraying late in the season add glyphosate for faster knockdown. Residues in the soil may suppress weeds and other susceptible species for one to two years.
Legal Status: PER 9792 (exp. 2025)
Legal requirements in each region
Land owners in this region to eliminate the plant from their property. Enforceable by the Alinytjara Wiluṟara Landscape Board.
Must not be sold or traded in any way, including as a contaminant of anything.
Must not be transported on a public road, including as a contaminant of anything.
Must not be imported into the region.
land owners in this region must notify the Alinytjara Wiluṟara Landscape Board of any infestation of the plant found on their land.
Land owners in this region to eliminate the plant from their property. Enforceable by the Eyre Peninsula Landscape Board.
Must not be sold or traded in any way, including as a contaminant of anything.
Must not be transported on a public road, including as a contaminant of anything.
Must not be imported into the region.
land owners in this region must notify the Eyre Peninsula Landscape Board of any infestation of the plant found on their land.
Land owners in this region to eliminate the plant from their property. Enforceable by the Green Adelaide Board.
Must not be sold or traded in any way, including as a contaminant of anything.
Must not be transported on a public road, including as a contaminant of anything.
Must not be imported into the region.
land owners in this region must notify the Green Adelaide Board of any infestation of the plant found on their land.
Land owners in this region to eliminate the plant from their property. Enforceable by the Hills and Fleurieu Landscape Board.
Must not be sold or traded in any way, including as a contaminant of anything.
Must not be transported on a public road, including as a contaminant of anything.
Must not be imported into the region.
land owners in this region must notify the Hills and Fleurieu Landscape Board of any infestation of the plant found on their land.
Land owners in this region to eliminate the plant from their property. Enforceable by the Kangaroo Island Landscape Board.
Must not be sold or traded in any way, including as a contaminant of anything.
Must not be transported on a public road, including as a contaminant of anything.
Must not be imported into the region.
land owners in this region must notify the Kangaroo Island Landscape Board of any infestation of the plant found on their land.
Land owners in this region to eliminate the plant from their property. Enforceable by the Limestone Coast Landscape Board.
Must not be sold or traded in any way, including as a contaminant of anything.
Must not be transported on a public road, including as a contaminant of anything.
Must not be imported into the region.
land owners in this region must notify the Limestone Coast Landscape Board of any infestation of the plant found on their land.
Land owners in this region to eliminate the plant from their property. Enforceable by the Murraylands and Riverland Landscape Board.
Must not be sold or traded in any way, including as a contaminant of anything.
Must not be transported on a public road, including as a contaminant of anything.
Must not be imported into the region.
land owners in this region must notify the Murraylands and Riverland Landscape Board of any infestation of the plant found on their land.
Land owners in this region to eliminate the plant from their property. Enforceable by the Northern and Yorke Landscape Board.
Must not be sold or traded in any way, including as a contaminant of anything.
Must not be transported on a public road, including as a contaminant of anything.
land owners in this region must notify the Northern and Yorke Landscape Board of any infestation of the plant found on their land.
Land owners in this region to eliminate the plant from their property. Enforceable by the South Australian Arid Lands Landscape Board.
Must not be sold or traded in any way, including as a contaminant of anything.
Must not be transported on a public road, including as a contaminant of anything.
land owners in this region must notify the South Australian Arid Lands Landscape Board of any infestation of the plant found on their land.
More Information
Find out how to:
- benefit from the early intervention of new and emerging weeds - handbook
- best manage your use and storage of agricultural and veterinary chemicals.
Control advice
For further help and advice managing this weed contact your regional landscape board: