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How to Manage Pests

Pests in Gardens and Landscapes

Ascochyta blight—Ascochyta spp.

Symptoms of plants infected with Ascochyta blight, or fungal leaf spot, include irregularly shaped brown or purple blotches on leaves or pods. Black lesions can be found on the stems, which may eventually rot and break. Leaves may shrivel and die.

Solutions

The fungus that causes Ascochyta blight survives in infected plant debris in the soil or on seed. Rain or overhead irrigation leads to rapid spread. Plant on raised beds so that the soil has good drainage. Limit the use of overhead sprinklers. Pull up and destroy infected plants as soon as you notice them to prevent spread in the field. Use pathogen-free seed and rotate out of peas.

Ascochyta blight symptoms on pea leaf
Ascochyta blight symptoms on pea leaf

Lesions on stem
Lesions on stem

Blotches on pea pod
Blotches on pea pod


Statewide IPM Program, Agriculture and Natural Resources, University of California
All contents copyright © 2008 The Regents of the University of California. All rights reserved.

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/VEGES/DISEASES/peaascochytabli.html revised: January 17, 2008. Contact webmaster.