In Newnan turf gray leaf spot disease can become quite problematic.  Especially in juvenile turf, that is less than one year old, particularly young perennial ryegrass, tall fescue, and St. Augustinegrass.  This type of disease is caused by a fungal pathogen, Pyricularia grisea, which infects and kills grass leaf blades.  This type of fungus forms bacterial spores that are spread through wind, moisture, equipment movement, and human activities such as foot travel.  Areas of your Newnan lawn with poor soil drainage are also more vulnerable to develop gray leaf spot disease.  Infections of gray lead spot disease can occur on any plant on your Newnan lawn that is above ground.  Symptoms begin as small tan to brown spots with a distinct purple border surrounding the infected tissue.  In Newnan lawns gray leaf spot disease favors conditions of very hot, humid weather in areas of shade and little to no air movement on the lawn.  During periods of hot and humid weather patterns infected turf may look singed or ragged resembling symptoms of drought.  Moderate outbreaks of the disease on your turf result in clusters of thin, off colored grass. However, severe outbreaks result in death and decay in extensive expanses of the Newnan turf and can ruin the entire region of turf grass in the lawn.  Newnan turf gray leaf spot disease spreads so quickly it can kill the turf grass in a matter of weeks.  Nature’s Turf, Inc. trains our technicians to look for this disease on every visit as part of our Newnan Lawn Care Program.

Managing gray leaf spot disease:

  • Mow at recommended height for your type of turf.  Irregular mowing and high cutting height favor disease.
  • Improve air flow and light penetration in areas of the lawn prone to continuous infections.
  • Irrigate during hours of early morning to reduce amount of time grass leafs remain wet
  • Avoid nitrogen rich fertilizer during periods favorable for disease development