naturalizedFabaceae

Acacia mearnsii

black wattle

Naturalized (non-native)non-native

Introduced and now reproducing on its own in the wild.

Acacia mearnsii is a fast-growing, extremely invasive leguminous tree native to Australia. Common names for it include black wattle, Acácia-negra (Portuguese), Australian acacia, Australische Akazie (German), Swartwattel (Afrikaans), Uwatela (Zulu). This plant is now known as one of the worst invasive species in the world.

Controlling Acacia mearnsii

From Weed Control by Species7 rows →

Best reported: IPA-Incision Point Application with 100% Triclopyr — one report from KMWP.

5.0IPA-Incision Point Application100% TriclopyrTriclopyrG41 report · 1 trial
KMWP
- 5successful. Recommended method · KMWP · trial · 2015-10-07
  Size: tree DBH 20-35 cmHabitat: mesic
5.0cut-stump20% G4, 80% BiodieselTriclopyrG41 report · 1 observed
OANRP
- 5successful. Recommended method · OANRP · observed · 2020-03-10
  Habitat: mesic
5.0girdle20% G4, 80% BiodieselTriclopyrG41 report · 1 observed
OANRP
- 5successful. Recommended method · OANRP · observed · 2020-03-10
  Habitat: mesic
5.0hand-pulln/a1 report · 1 observed
OANRP
- 5successful. Recommended method · OANRP · observed · 2018-04-24
  Easy to pull small size classes.
  Size: less than 2mHabitat: mesic
4.0IPA-Incision Point Application100% MilestoneAminopyralidG41 report · 1 trial
KMWP
- 4more than moderate satisfaction · KMWP · trial · 2020-03-10
  Habitat: mesic
3.0IPA-Incision Point Application100% GlyphosateGlyphosateG91 report · 1 trial
KMWP
- 3moderate satisfaction · KMWP · trial · 2015-10-07
  Size: success with smaller diameter trees. less than 20 cmHabitat: mesic
1.0IPA-Incision Point Application100% PolarisImazapyrG21 report · 1 trial
KMWP
- 1unsatisfactory results · KMWP · trial · 2015-10-07
  Habitat: 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 7 rows in the full table

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