Answer: Brown patches can simply be cool season grasses that have gone dormant over the summer months (they'll green up again when the weather cools down), or they could be a result of drought, dog urine, or they may even be a disease. It's difficult to make a recommendations without knowing what lead up the the brown patches. When did they appear? How have you been watering/fertilizing/mowing your lawn? Why not submit another question to this forum with more specific details and we'll try to help you solve the problem.
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