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ARS Home » Pacific West Area » Corvallis, Oregon » Horticultural Crops Research » Research » Publications at this Location » Publication #317149

Research Project: Improved Strategies for Management of Soilborne Diseases of Horticultural Crops

Location: Horticultural Crops Research

Title: Greenhouse plants, ornamental – Pythium seed rot, damping-off, and root rot

Author
item Weiland, Jerry
item Santamaria, Luisa - Oregon State University

Submitted to: Pacific Northwest Plant Disease Control Handbook
Publication Type: Review Article
Publication Acceptance Date: 12/30/2014
Publication Date: 3/1/2015
Citation: Weiland, G.E., Santamaria, L. 2015. Greenhouse plants, ornamental – Pythium seed rot, damping-off, and root rot. Pacific Northwest Plant Disease Control Handbook. p. 4G-47-4G-48.

Interpretive Summary:

Technical Abstract: Pythium species are very common soilborne pathogens that infect the seeds and roots of many greenhouse crops. Pythium All Pythium species are strongly favored by abundant moisture and can be especially problematic in poorly drained soils or potting media. Pythium usually attacks seeds or seedlings in the greenhouse. However, cuttings and older plants may also be affected, especially if the potting media is too wet. Disease control is best achieved by a combination of cultural and chemical control methods and by proper sanitation.