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Dry Pea Diseases
The most common diseases of dry peas are Ascochyta blight and foot rot, Sclerotinia, root rot, bacterial blight and powdery mildew.
There are three species of Ascochyta that can attack peas. These species cause leaf and pod blight. One common species also causes a foot rot. Use of thiram seed treatment can provide protection against Ascochyta foot rot.
Sclerotinia can attack peas. It is much more common on vine type peas than on semi leafless types.
Root rot can occur on some pea varieties. Several types may occur, including Aphanomyces. This is a water mold that is favored by warm and wet soils.
Bacterial blight is fairly common but usually is not serious. Use of certified seed minimizes the infection potential from bacterial blight.
Powdery mildew has been common in recent years, especially on late planted peas. Several sulfur fungicides are registered for field pea, including Kumulus, Liquid Sulfur, Micro Sulf and Thiolux.
For more information on diseases, see http://paridss.usask.ca/specialcrop/pulse_diseases/index.html
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