Pacific Northwest 1998 An Online Guide to Plant Disease Control

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Coriandrum spp. (Coriander, Cilantro, Parsley) -- Root Rot
 
Cause: The fungus, Mycosentrospora sp., has been associated with this disease on parsley in the Willamette Valley of Oregon. The fungus usually is a problem on carrot but has a wide host range of weed species. It is favored by cool soils.
Symptoms: A red discoloration and lesions on roots, and lesions on petioles.

Note the necrotic lesions on the root of this parsley plant.

 
Cultural control:
  1. Crop rotation.
  2. Plant later when soil temperature is warm.
Content edited by: Cynthia M. Ocamb on January 1, 2009
 
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