First report of the root-rot pathogen, Armillaria gallica, on koa (Acacia koa) and 'Ohi'a lehua (Metrosideros polymorpha) on the island of Kaua'i, Hawai'i

M. -S. Kim; N. R. Fonseca; R. D. Hauff; P. G. Cannon; John W. Hanna; Ned B. Klopfenstein

doi:10.1094/PDIS-07-16-1043-PDN

Treesearch

First report of the root-rot pathogen, Armillaria gallica, on koa (Acacia koa) and 'Ohi'a lehua (Metrosideros polymorpha) on the island of Kaua'i, Hawai'i

Formally Refereed

Authors:

M. -S. Kim, N. R. Fonseca, R. D. Hauff, P. G. Cannon, John W. Hanna, Ned B. Klopfenstein

Year:

2017

Type:

Scientific Journal

Station:

Rocky Mountain Research Station

DOI:

https://doi.org/10.1094/PDIS-07-16-1043-PDN

Source:

Plant Disease. 101(1): 255.

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Abstract

Koa (Acacia koa) and 'ohi'a lehua (Metrosideros polymorpha) are the two most dominant native tree species in Hawai‘i. Their populations are continuously decreasing, primarily because of forest disease (Dudley et al. 2007; Keith et al. 2015) and other biotic disturbances. In April 2015, Armillaria rhizomorphs were collected from woody hosts on the island of Kaua‘i, Hawai‘i.

Keywords

Acacia koa, Metrosideros polymorpha, native species, forest disease

Citation

Kim, M. -S.; Fonseca, N. R.; Hauff, R. D.; Cannon, P. G.; Hanna, J. W.; Klopfenstein, N. B. 2017. First report of the root-rot pathogen, Armillaria gallica, on koa (Acacia koa) and 'Ohi'a lehua (Metrosideros polymorpha) on the island of Kaua'i, Hawai'i. Plant Disease. 101(1): 255.