Brown patch is a common Lawn Disease in McDonough turf grass caused by Rhizoctonia species fungus in your lawn.  This type of turf grass disease is most common during mid to late summer when there are prolonged periods of high temperatures and humidity.  The Rhizoctonia species thrives in temperatures ranging from 70 to 90 degrees but can also survive in freezing temperatures.  Brown patch Lawn Disease in McDonough forms at night when temperatures drop below 68 degrees when humidity is high and moisture remains for long periods of time.  Usually this happens during the months of June and July.  McDonough lawns that have high levels of nitrogen in the soil are also at greater risk of developing brown patch disease.  Severe cases of this disease result in thinning or loss of the turf which allows for weeds to invade the lawn.  Brown patch symptoms fluctuate depending on the maintenance practices performed on your McDonough lawn such as mowing height, fertilizer, and water volume.   For turf grasses that remain wet for extended periods of time and are closely mowed will show symptoms such as a gray-purplish bordered ring, also known as a “smoke ring” that can reach up to 50 centimeters in diameter.  While taller grasses that are not wet for long periods of time produce patches that can be up to several feet in diameter and will have a “frogeye” appearance.  Upon closer inspection of your McDonough lawn, you may notice brown or yellow irregular shaped lesions on the grass blades.  Our trained team at Nature’s Turf, Inc. will inspect your turf for lawn disease on every visit as part of our McDonough Lawn Care Program.

How to manage Brown Patch Disease on your McDonough turf:

  1. Make sure your lawn is adequately draining, so there is no excess moisture on the lawn.
  2. Avoid excessive irrigation or watering of the lawn.  Irrigate or water early in the morning, before sunrise, to reduce the extent of grass dampness.
  3. Promote air circulation by pruning or removing unwanted trees and shrubs.
  4. Avoid high nitrogen fertilization especially during warm weather months.
  5. Be careful not to mow your lawn too low.
  6. If you have had problems with brown patch disease in the past, begin treatments for the lawn in late spring when night temperatures stay above 60 degrees.