Tele-Tips Brown Patches Georgia lawns suffer most from brown patch Generally, brown patch attacks only the leaves and stems of the grass, but it can cause severe damage if uncontrolled . The most serious disease in Georgia lawns is brown patch. It's caused by a fungus which attacks almost all species of grasses during the warm, humid early spring or fall weather. Brown patch is especially serious on St. Augustine and centipede grasses.
Brown patch factors Several factors can make grasses more susceptible to brown patch.
Excessive application of nitrogen fertilizer promotes lush growth that is readily attacked. Another condition that leads to severe disease development is watering late in the afternoon . This allows the grass to stay wet for a long time, which makes it easier for the fungus to grow. Symptoms You'll recognize brown patch by the development of irregular circular areas from a few inches in diameter to several feet in diameter. These areas begin as brownish orange to yellow discolorations in the lawn.