Look what I found:

The following statement appeared in an agricultural bulletin in 1928, about 20 years after it was first introduced in Florida as a forage crop. "Kudzu is not without disadvantages. It is slow and expensive in getting established, is exacting in requiring only moderate grazing and mowing, is deceptive about its real yield, especially to those who do not know it well, and sometimes becomes a pest.

Found it here at Kudzu - The Vine. Interesting article, some great pics. And lots of links to other Kudzu-related stuff.

"Sometimes becomes a pest". Heh.