Weed Control by Species
Records herbicide and mechanical control methods, products, and satisfaction ratings for invasive weed species in Hawaiʻi, contributed by multiple partner organisations.
Triclopyr
Group 4Synthetic auxin · some products labelled for aquatic sites
Best on Acacia mearnsii, Acacia mangium, Ageratina riparia, Ageratina adenophora
Glyphosate
Group 9EPSP synthase inhibitor · some products labelled for aquatic sites
Best on Ageratina riparia, Ardisia crenata, Axonopus fissifolius, Cortaderia selloana
Imazapyr
Group 2ALS inhibitor · some products labelled for aquatic sites
Best on Ardisia elliptica, Cecropia obtusifolia, Coffea arabica, Grevillea robusta
Aminopyralid
Group 4Synthetic auxin · no aquatic-labelled products
Best on Cryptomeria japonica, Delairea odorata, Leucaena leucocephala, Morella faya
Sulfometuron-methyl
Group 2ALS inhibitor · no aquatic-labelled products
Best on Pterolepis glomerata, Chromolaena odorata
Fluazifop-P-butyl
Group 1ACCase inhibitor · no aquatic-labelled products
Best on Axonopus fissifolius, Paspalum conjugatum, Melinis minutiflora
Aminocyclopyrachlor
Group 4Synthetic auxin · no aquatic-labelled products
Best on Acacia confusa, Toona ciliata, Leucaena leucocephala, Corymbia citriodora
Metsulfuron-methyl
Group 2ALS inhibitor · no aquatic-labelled products
Best on Hedychium gardnerianum
| Species | Family | Common Name(s) | Organization | Control Technique | Cocktail | Satisfaction Rating | Size class (in regards to species) | Habitat Type | Environmental factors | Trial or Observation? | Last Updated |
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Kept by UHELP. Ratings and notes are the reporting organisation’s own. For herbicides, always follow the product label — the label is the law.