Herbicides for Sweet Briar Control

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, check with 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 for use in bushland - 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.

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.

Foliar Spray Application

Stage of Growth	Herbicide (active ingredient)	Example of commercial product (concentration of active ingredient)	Application rate of commercial product	Withholding period	Comments
Actively growing to mature	Glyphosate 360 g/L (where product has an aquatic registration)	Weedmaster® Duo 360 g/L Roundup Biactive® (360 g/L)	Knapsack 225-300mL in 15L water or High volume 1.5 -2.0 L in 100 L water		Use higher rate on bushes over 1.5 metres tall. Apply from late flowering to leaf fall. Spray to wet all foliage. *Non cropping and bushland in accordance with APVMA Permit PER84775.
	Glyphosate	Roundup Power Max® (540 g/L)	Knapsack 100-140mLs in 15L water Hand gun 660-870 mL in 100L water		Apply as a thorough foliage spray when bushes are in full leaf and actively growing.   Do not apply to drought stressed plants.
	Triclopyr	Garlon™ 600 (600 g/L)	170 mL in 100 L water		Use on plants Less than 2 m tall. Apply when bushes have good leaf cover, growth and no leaf fall.
	Triclopyr, **Picloram	Grass-up™, Conqueror® (300 g/L, 100 g/L)	350-500 mL in 100 L water	Nil	Use on plants less than 1.5 m tall.
	Triclopyr, **Picloram, Aminopyralid	Grazon™ Extra (300 g/L, 100 g/L, 8 g/L)	500 mL in 100 L water		Use on plants Less than 2 m tall. Apply when bushes have good leaf cover, growth and no leaf fall.
	Triclopyr, **Picloram & Metsulfuron methyl	Grass-up™, Conqueror® (300 g/L, 100 g/L) Plus Associate® / Brush-off® (600 g/Kg)	350 mL + 10 g in 100 L water	Nil	Use on plants less than 1.5 m tall.
	Metsulfuron-methyl,	Associate® / Brush-off® (600 g/Kg)	10 g/100 L or 0.1 g/L plus surfactant/ wetting agent in accordance with product label		High volume handgun application: Apply when plants are in full leaf. Do not apply once leaf fall has commenced. Non cropping and bushland spot spray or knapsack application in accordance with APVMA Permit PER84775.
	Metsulfuron-methyl, & Glyphosate	Brush-off® 600 g/Kg & Roundup® (360 g/L)	10 g & 200 mL plus surfactant/ wetting agent in accordance with product label		Apply when plants are in full leaf. Do not apply once leaf fall has commenced.
	Metsulfuron-methyl + glyphosate	Trounce Brush-Pack (835 g/Kg Glyphosate & 10 g/Kg Metsulfuron)	1 x 173 g measure pack / 100 L water plus surfactant/ wetting agent in accordance with label as required	1 day	Apply when bushes are in full leaf prior to leaf fall. Always add a surfactant.
	Metsulfuron-methyl + glyphosate	Brush-off® 600 g/Kg & Weedmaster® Duo 360 g/L	3 g & 400 mLs in 100 L water	1 day	Apply when bushes are in full leaf prior to leaf fall. Always add a surfactant.
	Metsulfuron-methyl + glyphosate	Various concentrations	*See note in comments  column >		Knapsack spot spraying in accordance with APVMA Permit PER84775 *Application as per existing registrations or if weed not recorded on label, consistent with range of label rates. Plus surfactant/ wetting agent in accordance with label as required.

**Note: picloram remains active in soil for extended periods and may leach into groundwater.

Spotgun Application

Stage of Growth	Herbicide (active ingredient)	Example of commercial product (concentration of active ingredient)	Application rate of commercial product	Withholding period	Comments
Actively growing to mature	*Hexazinone	Velpar ®L 250 g/L	Spotgun 4 mL/spot - 1 spot for each metre in height		1 spot for each metre in height. Applied into moist soil beneath the bush (refer label). *Note: Hexazinone remains active in the soil for extended periods and may leach within the soil and cause damage to other plants with roots in the vicinity.

Drill Axe, Cut Stump and/or Basal Bark Application

Stage of Growth	Herbicide (active ingredient)	Example of commercial product (concentration of active ingredient)	Application rate of commercial product	Withholding period	Comments
Actively growing to mature	Glyphosate 360 g/L (where product has an aquatic registration)	Weedmaster® Duo 360 g/L Roundup® Biactive™ 360 g/L	Drill axe 2 ml undiluted per hole/cut		In accordance with APVMA Permit PER84775
	Glyphosate 360 g/L (where product has an aquatic registration)	Weedmaster® Duo 360 g/L Roundup® Biactive™ 360 g/L	Cut stump 1:5 - undiluted.		In accordance with APVMA Permit PER84775
	**Picloram 43 g/kg.	Vigilant® Herbicide Gel	Cut stump Direct application 3 - 5 mm thick		Cut stems 20mm above ground. Immediately apply gel over cut surface. Do not use if rain likely within 12 hours Avoid use over or near desirable plants, or in areas where their roots may extend or where the chemical may be washed or moved to their roots.
Mature	Triclopyr	Garlon 600 (600 g/L)	Basal bark and Cut stump 1:30 with diesel distillate		Basal bark method: Plants with stems up to 5 cm basal diameter. Cut stump method: Plants up to and in excess of basal bark size. Apply immediately after cut is made.
	Triclopyr 240 g/L, **Picloram 120 g/L.	Access	Basal bark and Cut stump 1 litre per 60 litres diesel distillate		Basal bark method: Plants with stems up to 5 cm basal diameter. Cut stump method: Plants up to and in excess of basal bark size. Apply immediately after cut is made.