Aphanomyces euteiches is a destructive root rot disease of peas,lentils, alfalfa, and native legumes worldwide. It is a very persistent water mold that lives in wet or flooded areas, the spores of which can remain viable in the soil for up to 10 years. There has been an increase in the number of confirmed cases in both Saskatchewan and Alberta since it was first discovered in 2013. 

Lentils and peas are the most susceptible crops and risk factors include close rotations of susceptible crops, soil moisture and compaction. Scout for symptoms in low lying areas that are prone to water-logging and test your soil to determine if the pathogen is present. Information about Aphanomyces can be found through provincial pulse commissions or government pulse crop specialists. 

Read our Technical Bulletin to learn about this new disease and how we can help you confirm disease presence.

Three additional Aphanomyces resources are listed below:

1. ‘Root Rot in Western Canada’. Pamphlet published by Western Canadian Crop Commissions. 

2.  'Pea root rot in Alberta: surveys, research and recommendations'. Presentation. Alberta Agriculture

3. 'Root Rots in Pulses'. Presentation. Saskatchewan Pulse Growers and Saskatchewan Agriculture