Wisteria and porcelainberry are the current bane of my existence. Both are beautiful but are quite aggressive. I have several of both that are over 100 years old. Their progeny are all over my block and no telling where the birds have spread them. I have been cutting them to the ground for years. This last year I went after every root and shoot I could find and with multiple instruments of destruction finally feel like I put a dent in these demons. Then in the fall, we had thousands of seedlings popping up all over. We will be battling the seed bed for years.
And ivy...DOH! Pulling those holdfasts takes off the paint, mortar, etc!!!