Willows
Salix spp.
Weed profile
Perennial
Tree
Weeds of National Significance (WoNS)
Hinders movement- Habitat: native vegetation, waterways
Impact
Invade native riparian vegetation. Change habitat of streams and banks.
Description
- Deciduous trees usually growing near water.
- Leaves long and narrow or ovate and crinkly.
- Flowers in green catkins, male and female on separate trees Seeds small, with woolly hairs.
Control options
picloram (44.7g/L) + aminopyralid (4.7 g/L)
Application Method: Cut stump
Application Rate: Undiluted gel
Product Name: Vigilant II®
Herbicide Group: 4
Situation: Native vegetation, gullies, and parks.
Timing: Cut stump, any time
Comments: Cut stump and apply 3-5 mm thick layer immediately. Do not use in urban home gardens.
Legal Status: Registered for this use on woody weeds in general.
glyphosate (360g/L)
Application Method: Spot spray
Application Rate: 1-1.3L/100L
Product Name: Roundup Biactive®
Herbicide Group: 9
Situation: Unwanted trees
Timing: Spot spray, actively growing
Comments:
- For plants less than 2 metres tall.
- Use higher rate for plants 1-2 meters high.
- Suitable for use near waterways - refer to label.
- Non selective, avoid contact with desirable plants.
Legal Status: Registered
glyphosate (360g/L)
Application Method: Stem injection
Application Rate: Undiluted
Product Name: Roundup Biactive®
Herbicide Group: 9
Situation: Unwanted trees
Timing: Stem injection, actively growing
Comments:
Suitable for use near waterways - refer to label. Make 5cm oblique cuts to reach sapwood under the bark, in trunk below any branches.
Basal diameter 0-25cm 1mL/cut, basal diameter 25-60cm 2mL/cut.
Legal Status: Registered
glyphosate (360g/L)
Application Method: Cut stump
Application Rate: Undiluted
Product Name: Roundup Biactive®
Herbicide Group: 9
Situation: Unwanted trees
Timing: Cut stump, actively growing
Comments:
Trees less than 10 cm basal diameter. Cut stump and apply herbicide immediately.
Suitable for use near waterways - refer to label.
Legal Status: Registered
Mechanical removal
Situation: Unwanted trees
Timing: Any time
Comments: Fell willow trees and remove all material. Branches may form new roots, and roots may form suckers.
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: