Parsley (Petroselinum crispum)-Root Rot

Cause The fungus, Mycocentrospora 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.

Cultural control

  • Crop rotation.
  • Plant later when soil temperature is warm.