Hawaii Forestry Virtual Field Day Videos
Visit the HawaiiRREA channel [http://www.youtube.com/HawaiiRREA] at YouTube to view forestry videos from CTAHR.
Featured YouTube Videos
Koa forest in Koke'e: recovery and threats
Koa Field Day by Dr. J. B. Friday, CTAHR Extension Forester, and Dr. Travis Idol, CTAHR Associate Professor of Tropical Forestry. A native koa forest that regenerated after hurrince 'Iwa and salvage logging in 1982 is now threatened by invasive species. Koke'e State Park, Kaua'i (June 2009).
Establishing Silvopastures with Acacia Koa
Dr. James Leary, CTAHR Invasive Weed Scientist, Dr. J. B. Friday, CTAHR Extension Forester, and Dr. Travis Idol, CTAHR Associate Professor of Tropical Forestry, research an innovative approach to restoring koa corridors on pastureland in Hawaii for land management to support both cattle and koa production. Herbicide trials and scarification methods are examined (July 2009).
Hawaii Forestry Virtual Video Field Days: FLASH Version
Links to secure video segments for viewing by our federal colleagues:
- Koa Forest in Koke'e: Recovery and Threats. Koa Field Day by Dr. J. B. Friday, CTAHR Extension Forester, and Dr. Travis Idol, CTAHR Associate Professor of Tropical Forestry. A native koa forest that regenerated after hurrince 'Iwa and salvage logging in 1982 is now threatened by invasive species. Koke'e State Park, Kaua'i (June 2009).
- Establishing Silvopastures with Acacia Koa: Dr. James Leary, CTAHR Invasive Weed Scientist, Dr. J. B. Friday, CTAHR Extension Forester, and Dr. Travis Idol, CTAHR Assistant Professor of Tropical Forestry, research an innovative approach to restoring koa corridors on pastureland in Hawaii for land management to support both cattle and koa production. Herbicide trials and scarification methods are examined (July 2009).
- Thinning, Fertilization and Herbicide Trials to improve Koa Production: Dr. J.B. Friday, CTAHR Extension Forester, explains a research trial to study the results of thinning, fertilization, and herbicides to improve Acacia koa production. Dr. James Leary, CTAHR Invasive Weed Specialist, explains the herbicide trial and demonstrates an application. CTAHR Virtual Field Day: Umikoa Ranch November 2008. ONE YEAR LATER follow-up shows the effect of the grass control. November 2009.
- Koa Regeneration: Hands-free Spraying for Koa Corridors (Dr. James Leary): Dr. James Leary, UH-CTAHR, conducts herbicide trials at Hakalau Forest National Wildlife Refuge to help re-establish critical habitat with Acacia koa vegetative corridors. Leary demonstrates the use of a prototype hands-free backpack sprayer to safely apply herbicide in uneven terrain.
- Grass Suppression for Koa Regeneration (Dr. James Leary): 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).
- Herbicide Trials at Volcano National Park (Dr. James Leary): Dr. James Leary, UH-CTAHR, conducts herbicide field trials at the Volcano National Park to control grasses suppressing regrowth of koa seedlings (Acacia koa) using glyphosate (Roundup®), fluazifop-p-butyl (Fusilade®), and imazapyr (Habitat®). Two types of hands-free spraying systems are shown.
- RESULTS: Herbicide Trials at Volcano National Park (Dr. James Leary): Dr. James Leary, UH-CTAHR Invasive Weed Specialist, returns to Volcano National Park to view the impact of herbicide trials with glyphosate (Roundup®), fluazifop-p-butyl (Fusilade®), and imazapyr (Habitat®).
- HBT Research Trials for Controlling Invasive Trees (Dr. James Leary): Dr. James Leary, UH-CTAHR Invasive Weed Specialist, works with Jane Beachy, O'ahu Army National Resource Program at the Kahuku Training area, on HBT (herbicide ballistic technology) trials. Includes footage and descriptions of imazapyr (Habitat®) trials on silk oak (Grevillea robusta), octopus tree (Schefflera actinophylla), Christmas berry (Schinus terebinthifolius) and shoebutton ardisia (Ardisia elliptica).