How to kill wattle regrowth

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


Wattle regrowth description

Wattle regrowth identification

Wattles exhibit a range of foliage types. The true leaves are divided into leaflets; however, a large group of wattles develop modified, flat, leaf-like structures called phyllodes (which are simply flattened stems) soon after germination.

Foliage colour ranges from light or dark green to blue or silver-grey. Flowering can occur throughout the year, although the majority of species flower during spring and summer. Individual flowers are arranged in inflorescences that may be either globular heads or cylindrical spikes.

Wattle regrowth control

How to kill wattle regrowth

In all situations, use Garlon 600 or Access at 1 L/60 L of diesel or Biosafe as a basal bark application to obtain optimum results. When treating wattle regrowth, always treat actively growing plants.

Poor results will always occur when treating wattle regrowth under moisture stress. Basal bark application is the most reliable application technique on most wattle species, except brigalow.

Herbicides for killing wattle regrowth

Product#Method of applicationRate*State
Access® Herbicide Basal bark and Cut stump 1:60 with diesel or Biosafe§ All
Garlon® 600 Herbicide Basal bark and Cut stump 1:60 with diesel or Biosafediesel distillate All
Grazon® Extra Herbicide Foliar spray 350 mL/100 L of water All
Garlon® 600 Herbicide Foliar spray 160 or 320 mL/100L of water All
Starane® Advanced Herbicide Foliar spray 300 or 600mL/100L of water All
Trezac® Arylex® active Herbicide Foliar spray 200 mL + 300 mL Starane® Advanced/100 L of water All
Access® Herbicide Thinline Basal bark 1:9 with diesel or Biosafe§ All
Tordon® RegrowthMaster Herbicide Cut stump 1:20 with water + surfactant All
Tordon® RegrowthMaster Herbicide Stem injection 1:4 with water All
Lontrel® Advanced Herbicide Stem injection 1:9 with water All

# Note: Preferred product option in bold.  * Consult label for details of growth stage and use, especially where range of rates is given.  § Biosafe – trademark used under licence, Victorian Chemical Co Pty Ltd.

Treatment timing

Timing to kill wattle regrowth

Treatment should only be carried out when plants are actively growing. Do not treat during hot, dry summer periods.

Garlon® 600 Herbicide
Starane® Advanced Herbicide
Grazon® Extra Herbicide
Access® Herbicide
Tordon® RegrowthMaster Herbicide
Lontrel® Advanced Herbicide
Key: Best time to spray/treat Can spray/treat if conditions are suitable Do not spray/treat