Erigeron karvinskianus
Mexican Fleabane
Introduced and now reproducing on its own in the wild.
Erigeron karvinskianus is a species of flowering plant in the family Asteraceae known by the common names Mexican fleabane, Latin American fleabane, Santa Barbara daisy, Spanish daisy, Karwinsky’s fleabane, or bony-tip fleabane.
Read more on Wikipedia →Only 8 phenology-annotated observations exist for this species in Hawaiʻi — too few to describe a season. No window is inferred.
Controlling Erigeron karvinskianus
Best reported: foliar with 5-10% G4 in water — one report from OANRP.
4.0foliar5-10% G4 in waterTriclopyrG4
- 4more than moderate satisfaction · OANRP · observed
Gently pull long runners from surrounding native vegetation, being careful to not break at rooted nodes; mound together in a pile and spray entire pile and any rooted nodes. Mounding is time consuming. Spraying is fast and effective. Retreament necessary for any rooted nodes that were missed.
2.0hand-pull
- 2minimal satisfaction · OANRP · observed
frequently regrows from nodes
Ratings are the reporting organisation’s own, on a 5-point scale. Always follow the product label — the label is the law. See these 2 rows in the full table
