5 Turfgrass Diseases in Georgia and How to Identify Them

Welcome to Big Grill Shop, your go-to resource for all your lawn care needs in Georgia. In this article, we will discuss the 5 common turfgrass diseases that can affect your lawn and provide you with valuable tips on how to identify and combat them.

1. Brown Patch Disease

Brown Patch Disease, caused by the fungus Rhizoctonia solani, is a common problem in Georgia's warm and humid climate. It appears as circular patches of brown, dead grass surrounded by a dark ring.

To identify Brown Patch Disease, look for irregularly shaped patches, ranging from a few inches to several feet in diameter. The affected grass typically has a slimy, dark brown appearance and pulls up easily due to the weakened roots.

To prevent and manage Brown Patch Disease, ensure proper lawn maintenance practices such as regular mowing, adequate watering, and proper fertilization. Additionally, avoid watering your lawn in the evening as this can create a favorable environment for the disease to thrive.

2. Dollar Spot

Dollar Spot is another common turfgrass disease prevalent in Georgia, caused by the fungus Sclerotinia homeocarpa. It appears as small, silver-dollar-sized spots on the grass blades, initially yellowish but later turning straw-colored.

To identify Dollar Spot, inspect your lawn for circular or irregular patches, usually 2-6 inches in diameter. These patches may merge and create larger affected areas. The grass in these areas will have bleached or straw-colored spots, resembling a dollar coin, hence the name.

To prevent and manage Dollar Spot, ensure proper lawn nutrition, regular aeration, and efficient moisture management. Avoid overwatering your lawn and try to water in the morning to allow the grass blades to dry during the day.

3. Pythium Blight

Pythium Blight, caused by various species of the Pythium fungus, thrives in hot and humid conditions of Georgia. It appears as circular, water-soaked patches that quickly turn brown and die.

To identify Pythium Blight, look for irregular patches in your lawn that often have a greasy, water-soaked appearance, especially during humid weather. The grass blades may also have a cottony or web-like growth, indicating fungal activity.

Preventing Pythium Blight involves improving lawn drainage, avoiding excessive nitrogen fertilization, and ensuring proper airflow. It's crucial to water your lawn in the morning or early afternoon, allowing enough time for the surface to dry before nightfall.

4. Red Thread

Red Thread is a turfgrass disease caused by the fungus Laetisaria fuciformis and is prevalent in Georgia's cool, moist conditions. It appears as irregularly shaped patches that range from light tan to reddish-brown, giving a thread-like appearance.

To identify Red Thread, look for patches that generally range in size from a few inches to several feet. The grass blades within these patches may have red or pink strands, resembling threads, extending from their tips.

Proper lawn care practices can help prevent and manage Red Thread. Ensuring adequate fertilization, proper mowing height, and maintaining balanced soil pH are key. Avoiding excessive nitrogen fertilization and watering early in the day also help minimize the risk.

5. Summer Patch

Summer Patch, caused by the fungus Magnaporthe poae, is a prevalent turfgrass disease in Georgia during the hot summer months. It appears as circular patches of dead, straw-colored grass, usually surrounded by a dark brown ring.

To identify Summer Patch, look for irregular patches, ranging from a few inches to several feet in diameter. The affected areas may have a white, cottony fungal growth and the surrounding grass may exhibit symptoms of drought stress.

Preventing Summer Patch involves implementing proper cultural practices such as regular aeration, overseeding with resistant grass varieties, and maintaining proper soil moisture levels. Additionally, proper fertilization and avoiding excessive thatch buildup are essential for optimal turf health.

Conclusion

By familiarizing yourself with these 5 turfgrass diseases and learning how to identify them, you are equipping yourself with valuable knowledge to maintain a healthy lawn in Georgia. Be proactive in your lawn care practices, apply the appropriate preventive measures, and promptly address any signs of disease to ensure your turf stays lush and vibrant.

At Big Grill Shop, we understand the importance of a healthy lawn. Visit our website for expert advice, high-quality lawn care products, and tools to help you achieve the beautiful, disease-free lawn you desire!