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Control of firetree (Myrica faya Aiton) with herbicides in Hawaii Volcanoes National Park

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Title: Control of firetree (Myrica faya Aiton) with herbicides in Hawaii Volcanoes National Park
Authors: Cuddihy, Linda W.
Santos, Gregory L.
Stone, Charles P.
Keywords: Myrica faya
LC Subject Headings: Hawaii Volcanoes National Park (Hawaii)
Herbicides -- Testing -- Hawaii -- Hawaii Island.
Morella faya -- Control -- Hawaii -- Hawaii Island.
Invasive plants -- Control -- Hawaii -- Hawaii Island.
Issue Date: Dec 1991
Publisher: Cooperative National Park Resources Studies Unit, University of Hawaii at Manoa, Department of Botany
Citation: Cuddihy LW, Santos GL, Stone CP. 1991. Control of firetree (Myrica faya Aiton) with herbicides in Hawaii Volcanoes National Park. Honolulu (HI): Cooperative National Park Resources Studies Unit, University of Hawaii at Manoa, Department of Botany. PCSU Technical Report, 82.
Series/Report no.: Technical Report
82
Abstract: Firetree is recognized as one of the most serious alien plant problems in Hawaii
Volcanoes National Park. The species is capable of invading essentially intact ecosystems and forms dense, monotypic stands with little or no ground cover. Because it is a nitrogen-fixer, firetree is able to occupy nutrient-poor recent volcanic substrates, where its litter adds four times more nitrogen to the soil than is derived from all other natural nitrogen sources. Added nitrogen alters the nutrient balance of invaded ecosystems and may encourage the invasion of other alien plants that would not otherwise be able to thrive in nitrogen-poor Hawaiian soils. As of 1989, firetree was controlled in approximately 5,460 ha (13,490 a) of the Park with the herbicide Tordon. Tordon is not an ideal herbicide for use in natural areas, because of the possibility of leaching from the roots of treated plants and movement through the soil to nontarget species. Also, Tordon 22K may be removed from sale in the future in Hawai'i. These two problems led to the initiation of research to find an effective herbicide substitute that would be safe to use on firetrees surrounded by native plants.
Description: Reports were scanned in black and white at a resolution of 600 dots per inch and were converted to text using Adobe Paper Capture Plug-in.
Sponsor: National Park Service Contract No. CA 8017 2 0001
URI/DOI: http://hdl.handle.net/10125/7176
Appears in Collections:The PCSU and HPI-CESU Technical Reports 1974 - current



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