Falling Leaves

The leaves have started to fall in Claremont.  They will be falling until Christmas.  Every once in a while, our Chinese Elm, and the Chinese elms in the neighborhood drop huge chunks of small green leaves, all attached together.  I take some comfort in knowing that it isn't something that I am doing wrong in the garden since it is widespread.  This happens occasionally, and since these trees are green year-round and continuously drop leaves, I don't know if it is weather-related or not.  All I know is that it is time to get out the rake.