Can anyone help me? I have a prunus tree and in places the bark has disapeared and their are weird wiggly stripes all over the exposed tree, almost like something has been burrowing through the bark, yuk. Will post pic tomorrow. Any ideas in the meantime?
???
http://www.agf.gov.bc.ca/cropprot/tfipm/shothole.htm
found that, but looking around there are lots of possible suspects.