Root rot of ohia (Metrosideros collina subsp. polymorpha) caused by Phytophthora cinnamomi

Author:

Kliejunas, J.T., Ko, W.H.

Title:

Root rot of ohia (Metrosideros collina subsp. polymorpha) caused by Phytophthora cinnamomi

Periodical:

Plant Disease Reporter

Year:

1973

Volume:

57

Pages:

383-384

Subject:

Ohia Metrosideros collina Fungi Hawaii Ohia dieback

Summary:

The ohia (Metrosideros collina subsp. polymorpha), is Hawaii's most abundant tree that occurs on the slopes of Mauna Kea and Mauna Loa on the island of Hawaii. Since this tree is especially valuable for its watershed protection and is also an important element in many of the island's plant communities, this study investigates the cause of the decline of the native ohia forest. It was found that while the fungus that is known as the Phytophthora cinnamomi has caused root rot and the death of the ohia greenhouse tests, that the isolation of this fungus from the ohia in the field was correlated with high rainfall and poor drainage, but not with ohia decline.

Label:

Botany - Ohia

Collection:

Periodicals