Look for vines on trees NOW!
They are more easily seen in winter and "choke" trees often. Just cut
a 6" piece of the vine out at waist level, then in the spring spray
the newly sprouted leaves at waist level with "Roundup". The higher
sections of vine will die and let go eventually. Just a precaution....the vines might be poison ivy , so be careful and disinfect the hand saw blade after cutting poison ivy !