The Q&A Archives: Lawn turning brown

Question: I have a bermuda lawn that gets plenty of water and sun light yet has developed large brown patches. I have fertilized and don't know what else to do. It's very hot, 100 degree weather, but it started before it got really hot. What else can I do?

Answer: Brown patches in the lawn can be caused by dog urine, over-fertilization and diseases. Without seeing the lawn, it's difficult to diagnose the problem. If you know dogs have not had access to your lawn, and if you know you've fertilized carefully, then the problem might be the fungal disease called Brown Patch. It is common in Bermuda lawns. Brown patch commonly starts as a small spot and can quickly spread outwards in a circular or horseshoe pattern up to a couple of feet wide. Often times, while expanding outwards, the inside of the circle will recover, leaving the brown areas resembling a smoke-ring. The best prevention for brown patch is to aerate often, reduce shade to effected areas, and follow a fertilization schedule to help prevent fertilization with excess amounts of nitrogen.

Hope this information helps you determine just what is causing the brown patches in your lawn.

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