Good Fences Make Good Neighbors?

poison ivy fence monster

A viewer sent in these photos of poison ivy growing on the fence between his house and his neighbor's house. This is one of the most impresssive poison ivy monsters I have ever seen, both in terms of the vine and the massive size of individual leaves. And if the research is correct and larger leaves indicate stronger urushiol oil inside them, this is an even bigger nightmare.

These neighbors seem to be working as a team on this, but what if your neighbor has poison ivy on your common fence and refuses to deal with it? Some towns actually have poison ivy by-laws. If there is no by-law it might be tricky to get the problem solved. Have you dealt with a poison-ivy-neighbor situation? Tell us the story.