naturalizedMyrtaceae

Leptospermum scoparium

Mānuka

Naturalized (non-native)non-native

Introduced and now reproducing on its own in the wild.

Leptospermum scoparium, commonly called mānuka, manuka myrtle, New Zealand teatree, broom tea-tree, or just tea tree, is a species of flowering plant in the myrtle family Myrtaceae, native to Australia and New Zealand.

Controlling Leptospermum scoparium

From Weed Control by Species12 rows →

Best reported: IPA-Incision Point Application with 100% Polaris (imazapyr) — one report from CTAHR/OANRP.

5.0IPA-Incision Point Application100% Polaris (imazapyr)ImazapyrG21 report · 1 trial
CTAHR/OANRP
- 5successful. Recommended method · CTAHR/OANRP · trial · 2018-04-24
  Trial complete, 25 months. 2 cuts/tree, 0.5ml/cut. At 14 months 5 of 5 trees dead. Suggest 1 cut/20-30cm.
  Size: trunk circumference 23-67cmHabitat: wet
5.0IPA-Incision Point Application100% Ranger Pro (glyphosate)GlyphosateG91 report · 1 trial
CTAHR/OANRP
- 5successful. Recommended method · CTAHR/OANRP · trial · 2018-04-23
  Trial complete, 25 months. 2 cuts/tree, 0.5ml/cut. At 14 months, 4 of 5 trees dead. At 25 months, 5 of 5 dead. Suggest 1 cut/20-30cm.
  Size: trunk circumference 23-67cmHabitat: wet
5.0foliar20% PolarisImazapyrG21 report · 1 trial
KMWP
- 5successful. Recommended method · KMWP · trial · 2015-11-09
  Size: largeHabitat: mesic
5.0foliar10% Honcho PlusGlyphosateG91 report · 1 trial
KMWP
- 5successful. Recommended method · KMWP · trial · 2015-11-09
  Size: largeHabitat: mesic
5.0basal-bark25% G4, 75% BiodieselTriclopyrG41 report · 1 observed
OANRP
- 5successful. Recommended method · OANRP · observed
  Size: only tried on small and medium plants
5.0cut1 report
OISC/KMWP
- 5successful. Recommended method · OISC/KMWP
  pile to prevent further seed dispersal. DOW Agro: "Preferred treatment Metsulfuron – foliar spray. Complete coverage is essential for effective control. Add Boost Penetrant." CABI: usu. metsulfuron or glyphosate, although triclopyr amine is sometimes used
4.0foliar20% G4TriclopyrG41 report · 1 trial
KMWP
- 4more than moderate satisfaction · KMWP · trial · 2015-11-09
  Size: largeHabitat: mesic
2.0IPA-Incision Point Application100% Milestone (aminopyralid)AminopyralidG41 report · 1 trial
CTAHR/OANRP
- 2minimal satisfaction · CTAHR/OANRP · trial · 2018-04-23
  Trial complete, 25 months. 2 cuts/tree, 0.5ml/cut. At 14 months, 1 of 5 trees dead. At 25 months, no change, trees in poor health, but mortality low. May be effective at higher rates
  Size: trunk circumference 23-67cmHabitat: wet
2.0IPA-Incision Point Application100% Honcho PlusGlyphosateG91 report · 1 trial
KMWP
- 2minimal satisfaction · KMWP · trial · 2015-11-09
  mixed results
  Size: largeHabitat: mesic
2.0IPA-Incision Point Application100% PolarisImazapyrG21 report · 1 trial
KMWP
- 2minimal satisfaction · KMWP · trial · 2015-03-10
  mixed results
  Size: largeHabitat: mesic
1.0IPA-Incision Point Application100% Garlon 4 (triclopyr)TriclopyrG41 report · 1 trial
CTAHR/OANRP
- 1unsatisfactory results · CTAHR/OANRP · trial · 2018-04-23
  Trial complete, 25 months. 2 cuts/tree, 0.5ml/cut. All plants healthy, minimal defoliation seen. Not recommended.
  Size: trunk circumference 23-67cmHabitat: wet
1.0IPA-Incision Point Application100% G4TriclopyrG41 report · 1 trial
KMWP
- 1unsatisfactory results · KMWP · trial · 2015-11-09
  Size: largeHabitat: mesic

Ratings are the reporting organisation’s own, on a 5-point scale. Always follow the product label — the label is the law. See these 12 rows in the full table

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