For beautiful and healthy turf near Sunnyvale, disease identification is critical. If you suspect that your lawn is suffering from one of the common diseases seen in Dallas lawns, it’s best to treat it as soon as possible.
This turf grass disease is commonly seen on lawns and golf courses in the summer months. Tall fescue, bentgrass, and perennial ryegrass are the most susceptible varieties to this condition, but brown patch is occasionally seen on Kentucky bluegrass as well. Periods of high humidity and temperatures encourage the disease growth, and its severity is typically worse on lush, well-maintained grass. Symptoms of brown patch include areas of brown-colored grass anywhere from a few inches wide to several feet in diameter. If you inspect the affected grass in the early morning, there’s a good chance you will see the fungus’ white mycelium on and between the blades.
This disease can affect a broad number of grass species, but is most frequently found on St. Augustine grass and perennial ryegrass. High nitrogen levels, warm temperatures, and high humidity promote the growth of gray leafspot. Symptoms of gray leafspot begin with small, brown spots on the stems and leaves. These spots quickly enlarge to cover about ¼” of the blade in a gray-colored, oval lesion. Mature spots can become a tan color with purple, brown, or yellow margins, and eventually the blade can wither and turn completely brown.
Commonly seen on Kentucky bluegrass, Zoysia grass, Bermuda grass, bentgrass, and perennial ryegrass, dollar spot is a bacterial disease that can affect all species of turf grass. Soil that is dry or low in nitrogen and leaves that are too wet tend to promote this condition. Dollar spot can be identified by the circles of straw-colored infection that are typically a few inches in diameter, comparable to a silver dollar. The best means of prevention for dollar spot is to fertilize your lawn regularly and to give the soil sufficient levels of water.