The brown patches are caused by a fungal disease known commonly as Dollar Spot. This disease can also be seen on some of the fairways. This disease has increased on the course over the last few years due to the combination of wet summers and mild winters without any prolonged periods of frost. The disease is currently being controlled by feeding and seeding the affected areas. The disease can also be controlled with fungicide, but this would be very costly due to the large areas that would require application.