Raking the lawn might be why you had children, but for the final preparation before winter you and your minions most-likely don’t have the know-how to remove all debris needed to ensure your healthy lawn makes it through the winter. Any plant diseases spreading in fall will likely remain there until the spring thaw by living in leftover debris like leaves, dead branches, soil or other fungal-holding material. Elements such as mycelium, spores and other reproductive fungal cultures are the best way for plant-killing diseases to span the winter and infect your yard again in the spring. It’s always best to have the final fall cleanup done by professionals who can identify and eliminate them.