The leaves have fallen and winter is coming. Before the first snow fall, be sure to perform a fall leaf cleanup. This fall cleanup is crucial for your lawn in order to prevent the leaves from smothering your lawn. This barrier of leaves traps moisture, inhibits sunlight, and harbors insects and diseases; this can kill patches of even the healthiest grass.To prevent a dead lawn after the winter has passed, fall leaf cleanup is essential. Don’t think that Mother Nature is going to do the job for you by blowing your leaves away. This may be true to some extent, but remember for the leaves that blow away, there’s that many more blowing onto your lawn.