I just had somebody tell me that web worms are natural and do not harm your trees in any way.  I personally don't see any good reason to keep them around even though I consider myself a bit of a naturalist.  Our customers typically have us come out to remove them mainly because of their unsightlyness.  But can anybody give me a good reason to keep these future moths in the trees?  I always keep an open mind and I like to have all of the information so our customers can make the most conscious choices in their trees and landscapes.