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UC IPM Home > Homes, Gardens, Landscapes, and Turf > Fruits and Nuts > Diseases

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How to Manage Pests

Pests in Gardens and Landscapes

Black root rot—Pythium and Cylindrocarpon spp.

Black root rot is caused by a combination of root injury and pathogen attack. Roots of affected plants turn black and the plants slowly decline.

Identification

Solutions

Preparing beds to provide good drainage and soil solarization can help keep black root rot a minor problem.

Unhealthy roots on the right
Unhealthy roots on the right

Statewide IPM Program, Agriculture and Natural Resources, University of California
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For noncommercial purposes only, any Web site may link directly to this page. FOR ALL OTHER USES or more information, read Legal Notices. Unfortunately, we cannot provide individual solutions to specific pest problems. See How to manage pests, or in the U.S., contact your local Cooperative Extension office for assistance. /PMG/GARDEN/FRUIT/DISEASE/strblkrot.html revised: June 29, 2009. Contact webmaster.