Gorse
How to Control: Introduce biocontrol agents wherever possible. Hand pull seedlings and very small plants. Cut stump application: Cut down low and treat stump with (2g metsulfuron/1L water ), or (100ml Tordon Brushkiller®/1L water) , or Vigilant® gel, or (100ml triclopyr/1L water), or (250ml glyphosate + 10ml penetrant/1L water). Frill and Fill: Make a deep […]
Brush Wattle
How to control: Hand pull or dig small plants (all year round). Ensure minimum soil disturbance. Cut stump application: Cut low and treat stumps with (5g metsulfuron/ 1L water) or (50ml triclopyr /1L water). Frill and fill: Make deep downward cuts into the sapwood around the base of the tree every 10cm, taking care not […]
Boxthorn
How to Control: Hand pull seedlings, winch out larger plants (all year round). Plant material can be left on site. Cut stump application: Cut down low to the ground and treat stumps with (200ml glyphosate/1L water) or (5g metsulfuron/1L water) or (200ml Tordon Brushkiller®/1L water). Frilling: make a deep cut into the sapwood at regular […]
Wonga Wonga vine
Special disposal notes: Cut stems can layer – Hang up off the ground or leave up in vegetation to dry out, dry and burn it, or take to landfill. How to Control: Hand pull small infestations, dig out roots. Cut stump application: Cut stems at ground level and treat stump with (200ml glyphosate/1L water) or […]
Smilax
Special note: Self-introduced biocontrol rust is present in the Whangrei Heads area. Most obvious signs of impact usually in July August. How to Control: Dig out tubers. Dispose of them at a refuse transfer station or burn them. Leave foliage on site to rot down. Weed wipe spring-early summer (300ml glyphosate/1L water). Spray in spring-early […]
Potato vine
How to Control: Hand pull removing all vegetation & roots. Cut stump application: Cut stems and treat with (100ml Tordon Brushkiller®/1L water), or Vigilant gel, or (100ml triclopyr/1L water). Cut aerial stems at knee height, leave hanging; knapsack spray plant material below spring-summer (100ml glyphosate + 20ml penetrant/10L water) or (60ml triclopyr + 10ml penetrant/10L […]
Madeira Vine/Mignonette Vine
Special disposal notes: No seed produced, spread by rhizomes and extremely persistent tubers (and stems to a lesser extent). Maintain strict weed hygiene. Intensive follow up required to deal with sprouting tubers. How to Control: Pull out roots & rake up aerial tubers. Place all parts in black plastic bags/sheets and leave to cook in […]
Japanese Honeysuckle
Special disposal notes: Very limited seeding. Primarily spreads vegetatively from fragments and garden waste. Cut stems can layer – Hang up off the ground or leave up in vegetation to dry out. All other cut material should be disposed of to refuse transfer station, burnt or buried deeply. How to Control: Dig out small sites […]
Ivy
Special disposal notes: Cut stems root at nodes. Leave hanging up in tree to dry out, dry and burn, or take to landfill How to Control: Cut stump application: Cut stem & treat liberally with (5g metsulfuron/1L water) or (50ml ®/1L water) within 10 minutes. Treat areas of exposed stem as well. Best for aerial […]
German Ivy
How to Control: Hand pull small plants, or dig out roots (all year round). Leave on site to rot down. Cut and treat stems with (100ml glyphosate /1L water) or (1g metsulfuron /1L water). Leave on site to rot down. Cut stems below waist height, spray below this point (spring-summer to actively growing plants) with […]