Mushrooms
There are a lot of fungus varieties that can cause problems in turf grass. Mushrooms are among the most visible but least harmful of lawn fungi. Fairy rings are caused by up to 50 different types of fungi and create expanding rings in turf. Neither of these problems has a simple "cure." But there are a few things that might be helpful if you discover you have one or both of these lawn disease situations. Mushrooms Don't Harm Your Turf Mushrooms are caused by a large number of different fungi. They are sensitive to moisture and so they normally appear during periods of heavy rainfall or on very heavily irrigated turf. Mushrooms feed on decaying organic material in the thatch or soil, and do not attack living grass plants. Shallow dead tree roots, construction debris, or heavy thatch on the lawn can become the "host" that mushrooms feed upon. In almost all cases, mushrooms will disappear when lawn moisture levels return to normal, and regular mowing is about ...