The answer to 'lawn care turning brown' is that there are several common causes, including drought, disease, pests, or improper mowing and watering. The symptoms include patches of brown or discolored grass that may spread across the lawn. Some solutions include adjusting your watering schedule, aerating the soil, applying fertilizer, and treating for pests or disease.
If the problem is widespread or you're unsure of the cause, it's best to call in a professional landscaper or lawn care specialist. They can diagnose the issue and recommend the appropriate treatment to get your lawn back to a healthy, green state.