Eucalypt regrowth control

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


Eucalypt regrowth description

Eucalypt regrowth identification

Eucalypt appear in a variety of guises including shrubs, mallees and trees. Most, however, occur as forest trees of 30 to 50 m height or as woodland trees of 10 to 25 m height.

Bark types roughly fall into two categories. There is the persistent type, the ‘rough barks’ (e.g. stringybarks, boxes, peppermints and ironbarks), and the partly or wholly regularly shedding type, the ‘smooth barks’ (e.g. scribbly gums).

Eucalypt regrowth control

Controlling eucalypt regrowth

When treating eucalypt regrowth, the best application method/herbicide will depend on the plant growth habit and the situation. For more detailed information on methods of treatment, refer to the Woody Weed Control Guide, available from Corteva Agriscience or the eucalypt regrowth weed sheet.

Herbicides for control of eucalypt regrowth

Product#Method of applicationRate*State
Grazon® Extra Herbicide Foliar spray 350 or 500 mL/100 L of water All
Access® Herbicide Basal bark and Cut stump 1:60 with diesel or Biosafe§ All
Tordon® RegrowthMaster Herbicide Stem injection 1:4 in water All
Garlon® 600 Herbicide Foliar spray 400 mL/100 L of water Qld, SA, WA, NT
Garlon® 600 Herbicide Foliar spray 560 mL/100 L of water NSW, Tas, Vic
Garlon® 600 Herbicide Basal bark and Cut stump 1:60 or 1:30 with diesel distillate All
Tordon® RegrowthMaster Herbicide Cut stump 1:20 in water + surfactant All
Grazon® Extra Herbicide Gas gun application 335 mL/ 10 L of 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 control eucalypt regrowth

Foliar spraying with Grazon Extra is best carried out on actively growing seedling or regrowth plants from January to May. Cut stump and basal bark treatments can be carried out during most of the year whereas stem injection application should not be done during dry/drought conditions.

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