WSU Extension

Hortsense

Pea
 
Disease
Aphanomyces root rot 
Pea wilt 
Powdery mildew 
Root rot 
Seed rot and damping-off 
Virus diseases 
Insect
Brown marmorated stink bug 
Cutworms and armyworms 
Pea aphid 
Pea leaf weevils 
Pea Moth 
Slugs 



print version| pdf version| email url    
Caption: Top to bottom: root rot, healthy, Fusarium wilt, healthy
Photo by: R.S. Byther
  
Pea : Root rot
(revision date: 6/3/2014)


Biology
Several fungal root rots can affect peas. Typical symptoms of root rots are stunting, yellowing, and dieback of aboveground portions of the plants. Root systems of affected plants are smaller than normal. Variously-colored lesions (red, black, grayish) are present on the roots, and the root system eventually becomes black and rotted. Aphanomyces root rot causes straw-colored lesions on the roots. Fusarium root rot causes red streaking in the core of the main root and lower stem. Other root rots do not cause this unique discoloration.
Management Options


Non-Chemical Management
  • Rotate crops. Do not plant peas in the same location more frequently than every third year.
  • Plant in well-drained soil. Use raised beds or add organic matter to soils to help improve drainage.
  • Do not overwater, especially in heavy soils.
  • Remove and destroy or discard (do not compost) diseased plants, including root systems.
  • Do not move contaminated soil to non-contaminated areas.
Select non-chemical management options as your first choice!

Chemical Management

None recommended

Images

+ Show larger images

 
Caption: Top to bottom: root rot, healthy, Fusarium wilt, healthy
Photo by: R.S. Byther