I met the team today at the Lake Oswego Saturday Market. They said to contact you! For years I have been seeing a snails, brown, cylindrical deposit on my automobiles (on paint). It is dark brown and "crusty". It is tightly stuck to the paint and has to be "scraped" off. It often had "bands" around it. The photo is not the best indication since it seem it is flatter that the usual "bands". I am assuming that this is caused by some type of insect! Would you please tell me the specie that is doing this?? I have wondered for "deposits" this for decades!! "