naturalizedEuphorbiaceae

Macaranga mappa

Pengua

Naturalized (non-native)non-native

Introduced and now reproducing on its own in the wild.

No written account yet for this species.

Seasonality

Only 0 phenology-annotated observations exist for this species in Hawaiʻi — too few to describe a season. No window is inferred.

What works

Controlling Macaranga mappa

From Weed Control by Species3 rows →

Best reported: hack and squirt with 100% G4 — one report from Ohulehule Conservancy.

5.0hack and squirt100% G4TriclopyrG41 report · 1 observed
Ohulehule Conservancy
- 5successful. Recommended method · Ohulehule Conservancy · observed · 2015-03-05
  Fully girdled trees, and applied 0.5mL herbicide every 4" along circumference of cut. Effective, totally killed trees, but worked a lot more slowly than GLY
  Habitat: wet
5.0hack and squirt100% Roundup CustomGlyphosateG91 report · 1 observed
Ohulehule Conservancy
- 5successful. Recommended method · Ohulehule Conservancy · observed · 2015-03-05
  Fully girdled trees, and applied 0.5mL herbicide every 4" along circumference of cut. Highly effective, trees totally defoliated in 1-2 months.
  Habitat: wet
4.0IPA-Incision Point ApplicationSee additional notes1 report · 1 trial
Waimea Valley
- 4more than moderate satisfaction · Waimea Valley · trial · 2015-03-10
  60 days after installation. All formulas show signs of effectiveness. No real trends in size yet. Reccomended to revisit site at 180 days.
  Size: Trunk circumference 14-44cmHabitat: 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 3 rows in the full table

Gallery · 4 · iNaturalist