Something has attacked the old "trash tree" in the back of the property. It has lost a lot of its leafs, and the ones still on the tree are covered in this sort of silk-like stuff. I am not sure what this is. Could it be bagworm, or is it something else? I am worried if the tree is not treated, it will die. It is not a beloved tree by any means, but it provides shade to the back drive, so for that reason, I hope it will not die. The third photo shows one of the leafs that landed on the fence.