Comprehensive Disease Control
It's Not a Matter of If, It's a Matter of When!
Without a preventive disease program, your tall fescue lawn in the Greater Nashville area will become diseased starting in May. Fungus thrives in warm, humid conditions, making it particularly prevalent during the summer months when night time temperatures are above 60F.
The most common disease in tall fescue is brown patch; it's caused by the fungus Rhizoctonia solani. Brown patch is more likely to occur in July and early August, when tall fescue is at its highest stress and lowest growth.
Another one you'll see is dollar spot, which is a fungal disease caused by the fungus Clarireedia jacksonii. When the pathogen is active and dew is present, a white, cottony, or cobwebby growth of fungal mycelium is visible. Late spring to early summer is prime time for dollar spot.