Brown patch is a major summer disease for lawns and golf courses. The most susceptible grass species, includes perennial ryegrass, tall fescue, and the bentgrasses. Occasionally, brown patch becomes a problem on Kentucky bluegrasses in mid- to late summer during extended periods of high temperature and humidity. But why is this “disease” such a problem?


The Symptoms

The symptoms of brown patch vary according to mowing height. In landscape situations, where mowing height is greater than 1 inch, brown patch appears as roughly circular patches that are brown, tan, or yellow in color and range from six inches to several feet in diameter.

The affected leaves typically remain upright, and lesions are evident on the leaves that are tan in color and irregular in shape, featuring a dark brown border. When the leaves are wet, or humidity is high, small amounts of gray cotton-like growth, called mycelium, may be seen growing amongst affected leaves. In close-cut turfgrasses (one inch or less), brown patch develops in roughly circular patches, ranging from a few inches to several feet in diameter, that are brown or orange in color. Distinct foliar lesions are not visible and mycelium is typically not present, but a black or dark gray ring, called a “smoke ring”, may surround the brown patches. The smoke ring is evidence of active disease development and is only present when the turfgrass leaves are wet or humidity is near 100 percent.

Because this lawn disease can be difficult to get rid of, most homeowners don’t have the patience to exterminate this problem once and for all. For example, lawn diseases like these aren’t eradicated with just one spray treatment. Most of them require multiple steps to clear the diseases brush and spray the remaining plant-life with a special chemical solution multiple times. Because of the sheer intensity of the clean-up process, most homeowners need to contact a professional service to see their lawn cleared of any affected foliage.

Spray Masters Can Help

Spray Masters is here to help homeowners clear their lawn and restore it to its initial beauty. Just because your lawn is the victim of a lawn disease, does not mean that its beauty is permanently sacrificed. Contact us today to learn more about our services.