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J. B. Friday, Department of Natural Resources and Environmental Management, UH-CTAHR
Adrian Ares, Department of Tropical Plant and Soil Science, UH-CTAHR
Paul Scowcroft, Institute of Pacific Islands Forestry, USDA Forest Service
Sean Gleason, Department of Natural Resources and Environmental Management, UH-CTAHR
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Tropical ash, a potential timber species introduced into Hawaii, can spread into native forests and possibly displace native trees. In this project, we investigate how quickly tropical ash spreads into native forest, what environmental factors control where ash can grow, and what the effects of invasion by ash are on the native forest. Click here for more details.
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Contact Dr. J. B. Friday (jbfriday@hawaii.edu)
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Susan C. Miyasaka, Department of Tropical Plant and Soil Sciences, UH-CTAHR
Mitiku Habte, Department of Tropical Plant and Soil Sciences, UH-CTAHR
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Volcanic ash soils found along the Hamakua Coast of Hawaii are known to "fix" phosphorus in forms unavailable to most plant species. Arbuscular mycorrhizal fungi are known to form symbiotic associations with many plant species, increasing the ability of roots to explore a soil volume for immobile nutrients such as phosphorus. Inoculation of tree seedlings with an effective AMF could help to reduce the necessity for high levels of phosphorus fertilization during early tree establishment. Click here for more details.
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Contact Dr. Susan Miyasaka (miyasaka@hawaii.edu)
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Mitiku Habte, Department of Tropical Soils and Plant Sciences, UH-CTAHR
Craig Elevitch, Agroforester
Paul Scowcroft, Institute of Pacific Islands Forestry, USDA Forest Service
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Research on the suitability of the different soilless media currently used by the local nursery industry with respect to the mycorrhization will impact tree and other seedling production enterprises in a significant way. Click here for more details.
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Contact Dr. Mitiku Habte (mitiku@hawaii.edu)
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Eduardo E. Trujillo, Department of Plant and Environmental Protection Sciences, UH-CTAHR
Stephan A. Ferreira, Department of Plant and Environmental Protection Sciences, UH-CTAHR
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Bush lantana is a serious threat to native Hawaiian plants. The purpose of this study is to quantify lantana biomass reduction at Kokee State Forest caused by the recently introduced biocontrol fungus Septoria sp. Click here for more details.
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Contact Dr. Eduardo Trujillo (trujillo@hawaii.edu)
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James L. Brewbaker, Department of Tropical Plant and Soil Science, UH-CTAHR
J. B. Friday, Department of Natural Resources and Environmental Management, UH-CTAHR
Nicklos Dudley, Hawaii Agriculture Research Center
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Hawaii's most important hardwood, koa, cannot be grown in plantations due to disease. We seek to identify resistance to koa wilt and produce seed for plantation use. Click here for more details.
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Contact Dr. J.L. Brewbaker (brewbake@hawaii.edu)
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Susan C. Miyasaka, Department of Tropical Plant and Soil Science, UH-CTAHR
Donald E. Hemmes, Department of Biology, UH Hilo
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There is a need to develop diversified agriculture in Hawaii. Commercial forests are a promising alternative land use; however, there is a long lag period before income is generated. This project seeks to improve the profitability and sustainability of tree farms by providing a supplemental source of income through the growing of mushrooms on wood chips, sawdust, or other waste wood products. Click here for more details.
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Contact Dr. Susan C. Miyasaka (miyasaka@hawaii.edu)
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J. Kenneth Grace, Department of Plant and Environmental Protection Sciences, UH-CTAHR
Julian R. Yates, Department of Plant and Environmental Protection Sciences, UH-CTAHR
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Termites are a major economic threat to trees, wood products, and structures. The purpose of this project is to determine termite distribution in Hawaii, and to develop and evaluate methods of termite prevention and control that are grounded in biology and appropriate for use in a Pacific island environment. Click here for details.
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For more information on termite biology, resistance of different Hawaiian and Pacific woods to termites, and termite information for homeowners, see the CTAHR Termite Project website at http://www2.hawaii.edu/%7Eentomol/index.htm
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Contact: Dr. J. Kenneth Grace (kennethg@hawaii.edu) |
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J. B. Friday, Department of Natural Resources and Environmental Management, UH-CTAHR
Russell S. Yost, Department of Tropical Plant and Soil Science, UH-CTAHR
Travis Idol, Department of Natural Resources and Environmental Management, UH-CTAHR
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While many people are planting forest trees on former agricultural or pasture lands in Hawaii, we do not have a good system for making fertilizer recommendations for trees. Proper fertilization is necessary for a successful forest plantation. We are developing a computer decision support system that will use knowledge gained from past forestry experiments to generate fertilizer recommendations for land owners and managers who are reforesting today. Click here for details.
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Contact: Dr. J. B. Friday (jbfriday@hawaii.edu) |
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Brent Sipes, Department of Plant and Environmental Protection Sciences, UH-CTAHR
Donald Schmitt, Department of Plant and Environmental Protection Sciences, UH-CTAHR
J. B. Friday, Department of Natural Resources and Environmental Management, UH-CTAHR
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Plant-parasitic nematodes often cause severe injury to forest and landscape trees but the damage is undiagnosed and uncontrolled. This project will identify plant-parasitic nematodes that are damaging to forest trees in Hawaii and disseminate this information. Click here for details.
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Contact: Dr. Brent Sipes (sipes@hawaii.edu).
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James L. Brewbaker, Department of Tropical Plant and Soil Sciences, UH-CTAHR
J. B. Friday, Department of Natural Resources and Environmental Management, UH-CTAHR
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Leucaenas are among the fastest-growing trees, but seediness reduces yield and creates ecological problems. In this project, we examine hardwood properties and yields of seedless clones of leucaena species hybrids for reforestation and plantation use in tropics. Click here for details.
Click here for information about Koa and Leucaena research at the CTAHR Hamakua Research Station
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Contact: Dr. James. L. Brewbaker (brewbake@hawaii.edu) |
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John Yanagida, Department of Natural Resources and Environmental Management, UH-CTAHR
J. B. Friday, Department of Natural Resources and Environmental Management, UH-CTAHR
Richard Bowen, Department of Natural Resources and Environmental Management, UH-CTAHR
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In this project, we assess how the forest industry has changed since the last benchmark (1993 GACC report). The purpose of this project is to determine the current economic value of Hawaii's forest industry. The project will also determine technical efficiency/inefficiency from a sample of tree-farms. Click here for more details. |
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Contact: Dr. John Yanagida (jyanagid@hawaii.edu)
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Dulal Borthakur, Department of Molecular Biosciences and Biosystems Engineering, UH-CTAHR
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For genetic improvement of Leucaena leucocephala, it is necessary to develop genetic transformation procedures for this tree. The purpose of this project is to develop transformation protocols for leucaena. Click here for more details.
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Contact: Dr. Dulal Borthakur (dulal@hawaii.edu)
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Dulal Borthakur, Department of Molecular Biosciences and Biosystems Engineering, UH-CTAHR
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Acacia koa is a large, evergreen nitrogen fixing tree in Hawaii but very little is known about the nature of its root nodule bacteria. The project will determine genetic diversity in Bradyrhizobia- nodulating Acacia koa trees in different Hawaiian Islands. The project will isolate and identify a few most effective Bradyrhizobium isolates for nodulation of A. koa. For more details click here. |
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Contact: Dr. Dulal Borthakur (dulal@hawaii.edu)
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