During the summer months in Louisiana, lawn diseases and insects can plague your landscaping. A few of the diseases that are active in the summer months are Gray Leaf Spot, Melting Out, and Take-all Root Rot. Some possible insect problems could be Chinch bugs, Sod Webworms.
If you see brown patches, general yellowing, thinning, or changes in the appearance of your lawn and foliage, there is usually a problem with disease or insects. Start proper treatment before it spreads. Take a picture of the problem and go to a Lawn Care Service that can help you. If you prefer to bring in a professional, contact a local landscaper. Another great resource to answer any of your questions is LSU AgCenter. Information is on their web site www.lsuagcenter.com.