Good (beautiful) Morning, I have a chocolate vine which I LOVE, but this year it is looking naked and scruffy at the bottom 4 feet. Beyond that it is lovely. Should I (gasp!) prune it right down at the end of the season? I have had it with my hops. It has what I think is white fly again, and looks awful for the third year. I sprayed it with soap solution early on, but it didn't help. Should I tear the bugger out?