Grass Suppression for Koa Regeneration

by HI-GLC on March 4, 2011

Dr. James Leary, UH-CTAHR, conducts herbicide trials at the Kona Hema Reserve to control grasses suppressing regrowth of koa seedlings (Acacia koa) using glyphosate (Roundup®), fluazifop-p-butyl (Fusilade®), and imazapyr (Habitat®). Dr. Leary also demonstrated use of a hands-free spraying system and evaluates the impacts of imazapyr on other native species (ohia, Metrosideros polymorpha). Funding provided by TSTAR, RREA, and USDA-NRCS.

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