Department of Plant Pathology North Carolina State University
Forecasted weather patterns will be favorable for Pythium blight to start showing up on cool-season turfgrasses across much of North Carolina. With afternoon showers and nighttime temperatures over 70, conditions will be ideal for this disease to do some damage, particularly in tall fescue. Preventative measures should be taken now before the average daily temperature gets too high for cool-season turfgrasses to recover.
For more information about Pythium blight and preventative fungicide programs, please visit the following link: http://www.turffiles.ncsu.edu/diseases/pythium-blight