What are these invasive vines?
These two vines are running rampant in my garden this year. They both look a little like grapevines, based on the leaves and small fruits. The plant in the foreground has mostly tiny berries that are just beginning to enlarge; none have turned purple yet. The vine in the background has more highly reticulated leaves and some of the berries are starting to turn purple. Are either of these vines actually grapes, or are they toxic impersonators?
We think this is porcelainberry vine, a non-native invasive plant that is very destructive. If so, we'd recommend that you destroy is immediately. Here are two websites that can help you distinguish porcelainberry from grape vines, including how to control porcelainberry: