June 28, 2017

Rhizoctonia (Black Root Rot) on low tunnel strawberries

Our WCROC, Morris site had an unexpected disease pop up – Rhizoctonia, or black root rot.  We first noticed some strawberry plants wilting.  Then the underside of the leaves turned purplish, and curled up.  Eventually, the crown of the plants died.

Plants are severely weakened by Rhizoctonia

Plants are severely weakened by Rhizoctonia

In order to properly diagnose, we collected plant and soil samples and sent into the Plant Disease Clinic.  The results showed the disease rhizoctonia in both the plant roots and crown tissue. This disease has significantly stunted our fruit production. We are further investigating what might be the cause of rhizoctonia in our day neutral strawberry plot.