Chilean needlegrass
Nassella neesiana
Weed profile
Perennial
Grass
Weeds of National Significance (WoNS)- Habitat: native vegetation, pastures
Impact
Invades pastures and bushland. Sharp seeds.
Description
- Perennial grass with a tussock of narrow basal leaves.
- Seedhead is an open panicle with many purplish spikelets.
- Seeds with an awn surrounded at its base by a crown of bristles.
Control options
Manual removal
Situation: Any
Timing: When found.
Comments: Grub individual plants. Suitable for very small infestations and outliers only.
flupropanate (745g/L)
Application Method: Wiper
Application Rate: 500mL/10L
Product Name: Tussock™
Herbicide Group: 0
Situation: Non-crop areas and pastures.
Timing: Wiper, July - September
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)
flupropanate (745g/L)
Application Method: Spot spray
Application Rate: 100-300mL/100L
Product Name: Tussock™
Herbicide Group: 0
Situation: Non-crop areas and pastures.
Timing: Spot spray, July - September
Comments:
Add a non-ionic surfactant. A slow-working residual. If spraying late in the season add glyphosate for faster knockdown.
Do not graze or cut for stockfeed for at least 14 days after application. 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) + glyphosate (450g/L)
Application Method: Boom spray
Application Rate: 1.5-3L + 300-500mL/ha
Product Name: Tussock™ + Roundup CT®
Herbicide Group: 0, 9
Situation: Non-crop areas and pastures.
Timing: Boom spray, while actively growing, autumn to spring.
Comments:
Add a non-ionic surfactant. Use the higher rates on dense infestations.
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: Boom spray
Application Rate: 1.5-3L/ha
Product Name: Tussock™
Herbicide Group: 0
Situation: Non-crop areas and pastures.
Timing: Boom spray, July - September
Comments:
Add a non-ionic surfactant. A slow-working residual. If spraying late in the season add glyphosate for faster knockdown. Do not graze or cut for stockfeed for at least 4 months after application.
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 areas and pastures.
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: 800mL/100L
Product Name: Roundup CT®
Herbicide Group: 9
Situation: Non-crop areas and pastures.
Timing: Spot spray, while actively growing, autumn to spring.
Comments: Results may be variable. 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: 150-300mL + 270mL/100L
Product Name: Tussock™ + Roundup CT®
Herbicide Group: 0, 9
Situation: Non-crop areas and pastures.
Timing: Spot spray, while actively growing, autumn to spring.
Comments:
Add a non-ionic surfactant. Use the higher rates on dense infestations.
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)
glyphosate (450g/L)
Application Method: Boom spray
Application Rate: 2.4L/ha
Product Name: Roundup CT®
Herbicide Group: 9
Situation: Non-crop situations
Timing: Boom spray, while actively growing, autumn to spring.
Comments: Results may be variable - Suppression only. Non selective, avoid contact with desirable plants.
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: