Diseases are one of the most devastating problems of turf grasses. It is important that you understand that most lawns contain the spores for many different diseases and they are stimulated into action by environmental conditions such as weather, poor management practices, or a combination of both. The most effective control is proper maintenance practices combined with well timed fungicide treatments.
The most prevalent disease in our area is Brown Patch. It mainly affects tall fescue, which is the most widely planted turf grass species in this area. Brown Patch Disease requires very specific conditions to become and remain active. There MUST be at least 10-12 hours of moisture on the leaf blades at night when night time temperatures are somewhere around 65 to 70 degrees or higher. A 'wet' leaf blade can occur by high humidity, watering at night, or by evening thunderstorms.