Kudzu is a big problem up here in Wisconsin too, although I am guessing our winters slow it a bit. It grows around trees, literally choking them to death. One of my favorite trails the DNR burned out to rid it of Kudzu. In the right conditions, this stuff can grow up to A FOOT A DAY!!
The notched hunks of woods in the 3rd from last pic look like they were from a figure 4 dead fall trap....