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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Agriculture and Natural Resources, University of California

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