Disclaimer
These herbicide recommendations are made subject to the product being registered for that purpose under relevant legislation. It is the user's responsibility to check that registration or an off-label permit covers the proposed use.
Always read the herbicide label. If in doubt, visit the Australian Pesticides and Veterinary Medicines Authority (APVMA) website at
www.apvma.gov.au.
Only herbicides registered for use in pasture and non-cropping situations - or included under off-label provisions - are listed in the following table. For recommendations in specific crops consult an agronomist.
Care must be taken in using herbicides as non-target plants contacted may be harmed.
Important Note - Do not apply any herbicides to blackberry plants that are carrying fruit.
Wetting agents
Most herbicides require a wetting agent for best results. Carefully consult the product label for specific directions regarding any adjuvants.
Waterways and wetlands
Be careful! Many herbicides can cause damage to waterways and wetlands. Check the herbicide label directions carefully before use near waterways and wetlands. For more information see
Guidelines for Safe and Effective Herbicide Use Near Waterways.
Herbicide brands and concentrations
Herbicides are referred to by the active chemical ingredient in the following table. The product trade names in this publication are supplied on the understanding that no preference between equivalent products is intended and that the inclusion of a product does not imply endorsement by DPIPWE over any other equivalent product from another manufacturer.
Information on available brands containing the herbicide you require should be obtained from a reputable herbicide supplier or the APVMA website at
www.apvma.gov.au.
There may be a number of products with the same active ingredient but with alternate formulations (concentration) registered for control of a weed eg: Glyphosate 360 g/L, Glyphosate 450 g/L may be registered for use on the same weed. Alternate formulations such as these will have a different application rate.
Always check the label.Foliar application
Stage of Growth/time of application | Herbicide (active ingredient) | Example of commercial product (concentration of active ingredient) | Application rate of commercial product | Withholding period | Comments |
Late spring - early autumn | Triclopyr + *Picloram | Grass-up™ (300 g/L + 100 g/L | 35 - 50 ml/10 L | nil | Use the high rates on plants which have been damaged by grazing stock or on known difficult to kill blackberry.
Where herbicides other than Group I herbicides have been used, allow 2 seasons regrowth to occur before respraying. |
Triclopyr | Garlon™600 (600 g/L) | 17 ml/10 L | nil | Where herbicides other than Group I herbicides have been used, allow 2 seasons regrowth to occur before respraying. |
Triclopyr + *Picloram + Aminopyralid | Grazon ™ Extra (300 g/L + 100g/L+ 8 g/L) | 35-50 ml/10 L | nil | Use the high rates on plants which have been damaged by grazing stock or on known difficult to kill blackberry.
Where herbicides other than Group I herbicides have been used, allow 2 seasons regrowth to occur before respraying. |
Actively growing | Metsulfuron-methyl | Brush-Off® (600 g/kg) | 1 g/10 L | nil | Thoroughly wet all foliage and canes. |
Metsulfuron-methyl + glyphosate | Brush-Off® (600 g/kg) + Glyphosate (360 g/L)
Cut-out® (63.2 g/kg Metsulfuron-methyl + 760.5 g/kg glyphosate) | 1 g/10 L + 20 ml
1 measured pack (95 g) per 100 L of water | nil | Thoroughly wet all foliage and canes. |
Glyphosate | Roundup PowerMAX™ (540 g/L)
Glyphosate (360 g/L)
Roundup ™ Biactive (360 g/L) | 100 ml-140 ml /15 L
100-150 ml/15 L
100-150 ml/15 L | nil | Use higher rate on old dense infestations greater than 2 m high.
Non-selective and will affect grasses, clovers and most broadleaf plants.
Suitable for use near water. |
*Picloram | Vigilant® Herbicide Gel (45 g/kg) | 3-5 mm thick | nil | Cut Stump: Cut stems 20 mm above ground level, immediately apply gel over cut surface. For multi-stemmed plants treat at least 80 percent of stems including all main stems. |
| Hexazinone | Velpar® L (250 g/L) | 4 ml per spot | nil | Bushes up to 1 m.
Apply near base of crown. |
*
Note: picloram remains active in soil for extended periods and may leach into groundwater.