Gorse control

Access all the information needed for control of this noxious weed, including weed identification, herbicide application and spray timings.

Weed Description

Description

Gorse is a woody, deep-rooted perennial legume, capable of growing to 4 m tall. It has numerous small green leaves that form hard spines up to 5 cm long. Bright yellow flowers emerge in autumn and spring and plants produce large quantities of seed. The hard-coated seeds are spread up to 6 m by an explosive opening of the pods in mid summer.

Flowers are bright yellow, pea-like, approximately 20 mm long, and are borne all over the plant. The buds develop during February and March; however, flowering occurs in two distinct seasons, spring and autumn. Gorse seedlings can be eaten by livestock but mature plants have spines that can cause injury. Gorse is very competitive and reduces the productivity of pasture. Dense infestations restrict movement of livestock and provide a haven for rabbits and other pests.

Weed Control

Controlling Gorse

Gorse is a weed of national significance and is identified as being invasive, having the potential for widespread environmental, social and economical damage. Landowner’s and land managers at all levels are responsible for actively managing this weed.

  • When gorse is 1 to 1.5 m tall use Grazon™ Extra Herbicide at 250 mL/100 L of water during spring and summer only.
  • For plants over 1.5 m tall or during autumn use Grazon Extra at 350 mL/100 L of water.If treating in winter, use Grazon Extra at 500 mL/100 L of water.
  • Brownout may not be complete until summer.
  • Ensure thorough spray penetration and coverage of the whole plant.

Herbicides for Control of Gorse

Product#
Method of application Rate* State
Grazon™ Extra Herbicide Foliar spray 250, 350 or 500 mL/100 L of water All
Garlon™ 600 Herbicide
Foliar spray 170 or 340 mL/100 L of water All
Stinger™ Herbicide Foliar spray 30 g/100 L of water + Pulse™ NSW, SA, Tas, Vic
Stinger + Glyphosate 450 Foliar spray 20 g + 160 mL/100 L of water + Pulse NSW, SA, Tas, Vic
Tordon™ 75-D Herbicide
Foliar spray 750 mL or 1 L/100 L of water Vic
Tordon™ RegrowthMaster
Foliar spray 375 mL/100 L of water NSW, Vic, Tas, SA
Grazon Extra
Aerial (helicopter only) 10 L/ha Tas
Vigilant™ II Herbicide Cut stump Apply neat: 3–5 mm layer All

#Note: Preferred product option in bold. *Consult label for details of growth stage and use, especially where range of rates is given.

Treatment Timing

Timing

As with most weeds, the optimum time for herbicide application is when plants are actively growing. This is generally during spring to early summer, and after the autumn break.

PRODUCT Sep Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug
Grazon Extra
KEY
Best time to spray/treat
Can spray/treat
if conditions are suitable
Do not spray/treat