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Andrew K. Gonsalves, Educational Specialist
Stephen A. Ferreira, Extension Plant Pathologist
Department of Plant Pathology, CTAHR
University of Hawaii at Manoa
Over twenty Pythium species have been reported to occur in Hawaii (Raabe, et al., 1981). The following is a list of the reported pathogens from this genus (Pythium) and the hosts they infect. The list is organized by the scientific name of the pathogen species (CAPITAL LETTERS), followed by the symptom or disease a given pathogen causes on the listed hosts.
PYTHIUM ACANTHOPHORON
PYTHIUM APHANIDERMATUM
Basal Stem Rot:
Crown and Root Rot:
Root Rot:
Other:
PYTHIUM ARRHENOMANES
Rootlet Rot:
PYTHIUM ARTOTROGUS
PYTHIUM ARTOTROGUS var. MACROCANTHUM
PYTHIUM CAROLINEANUM
Root and Corm Rot:
PYTHIUM DEBARYANUM
PYTHIUM DIMERON
PYTHIUM GRAMINICOLA
PYTHIUM INDIGOFERAE
PYTHIUM INTERMEDIUM
PYTHIUM IRREGULARE
PYTHIUM ?MAMMILLATUM
PYTHIUM MEGALACANTHUM
PYTHIUM POLYMORPHON
PYTHIUM ROSTRATUM
PYTHIUM SP.
Damping-Off:
PYTHIUM SPLENDENS
PYTHIUM ULTIMUM
PYTHIUM VEXANS
KINGDOM: Mycetae (fungi)
DIVISION: Eumycota
SUBDIVISION: Mastigomycotina (produce zoospores)
CLASS: Oomycetes (water molds, white rusts, downy mildews)
ORDER: Peronosporales
FAMILY: Pythiaceae
No information is available for this section at the moment, please check future Knowledge Master Versions.
Agrios, G.N. 1988. Plant Pathology, 3rd edition. Academic Press, Inc: San Diego. 803 pp.
Farr, , D.F., G.F. Bills, G.P. Chamuris, and A.Y. Rossman. 1989. Fungi on Plants and Plant Products in the United States. APS PRESS: St. Paul, Minnesota. 1252 pp.
Raabe, Robert D., Ibra L. Conners, and Albert P. Martinez. 1981. Checklist of Plant Diseases in Hawaii. Hawaii Institute of Agriculture and Human Resources, College of Tropical Agriculture and Human Resources, University of Hawaii (Information Text Series 022).
Streets, R.B. 1982. The Diagnosis of Plant Diseases: a field and laboratory manual emphasizing the most practical methods for rapid identification. The University of Arizona Press: Tucson, Arizona.
JUNE 1994
1-PYTHIU
If you require information in an alternative format, please contact us at: markwrig@hawaii.edu