Skip to Main Content
Site preparation affects survival, growth of koa on degraded montane forest landAuthor(s): Paul G. Scowcroft; Kenneth T. Adee
Source: Res. Paper PSW-205. Berkeley, CA: U.S. Department of Agriculture, Forest Service, Pacific Southwest Research Station. 7 p
Publication Series: Research Paper (RP)
Station: Pacific Southwest Research Station
Download Publication (573.0 KB)
DescriptionBanana poka vines (Possifloro mollisrimo) and kikuyu pass (Pennirerurn clondestinum) can limit koa(Acacia koa) reforestation in Hawaii. Performance of planted koa seedlings was studied in relation to type of site preparation: broadcast spraying of Roundup herbicide at three rates (2.02, 4.05, and 6.07 kg active ingredient per hectare) and hand scalping vegetation from each planting spot. One year after planting, survival and growth of koa seedlings were significantly greater in plots sprayed with a heavy dose of Roundup than in control plots. Ten year survival and height were significantly greater for the heavy dose treatment than for the scalp treatment, but none of the trees in the control treatment were alive. Site preparation must control competing vegetation over the entire planting area, to give koa a competitive edge during establishment.
- You may send email to firstname.lastname@example.org to request a hard copy of this publication.
- (Please specify exactly which publication you are requesting and your mailing address.)
- We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
- This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.
CitationScowcroft, Paul G.; Adee, Kenneth T. 1991. Site preparation affects survival, growth of koa on degraded montane forest land. Res. Paper PSW-RP-205. Berkeley, CA: U.S. Department of Agriculture, Forest Service, Pacific Southwest Research Station. 7 p
KeywordsAcacia koa, Passiflora mollissima, Pennisetum clandestinum, competition, Hawaii, reforestation
- Disturbance during logging stimulates regeneration of koa
- Molecular genetic characterization of the koa-wilt pathogen (Fusarium oxysporum): Application of molecular genetic tools toward improving koa restoration in Hawai'i
- Development of tools for early detection, monitoring and management of the koa wilt pathogen (Fusarium oxysporum f. sp. koae) in Hawaiíi
XML: View XML