Phytophthora Diseases of Orchids in Hawaii

Date
1991-08
Authors
Uchida, J.Y.
Aragaki, M.
Journal Title
Journal ISSN
Volume Title
Publisher
University of Hawaii
Abstract
In Hawaii, Phytophthora palmivora is a major fungal pathogen of orchids, causing large black foliar rots, root losses, and seedling damping-off of Dendrobium, Cattleya, Epidendrum, Vanda, Paphiopedilum, Laeliocattleya, and a few other intergeneric hybrids. Recently, it has also been associated with blossom spots and rots of Dendrobium and Vanda. Phytophthora nicotianae (commonly known as P. parasitica) also occurs on most of the above orchids. Phytophthora cinnamomi is an occasionally important pathogen of cymbidium roots, and P. cactorum has also been observed on cymbidium, but only infrequently.
Description
Keywords
fungal diseases of plants, Hawaii, Orchidaceae, orchids, Phytophthora cinnamomi, Phytophthora nicotianae, Phytophthora palmivora
Citation
Uchida JY, Aragaki M. 1991. Phytophthora diseases of orchids in Hawaii. Honolulu (HI): University of Hawaii. 11 p. (Research Extension Series; RES-129).
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