Now muscadine growers have a new pest to concern themselves with in south Mississippi. Recently, Chris Werle (USDA-ARS Thad Cochran Southern Horticultural Laboratory Poplarville, MS) found ambrosia beetles attacking muscadine vines. These beetles are extremely harmful to the plants they attack. Not only do the beetles attack the plant, but they also transmit a fungus (e.g. Fusarium spp.) that can eventually take down the plant. Infested plant parts should be removed and destroyed. Plants showing heavy infestation and/or significant related disease symptoms should be removed to halt further spread. Control must be done before the beetle burrows into the plant. The two links below have suggestions as well as photos of the pest.
North Carolina State University http://www.ces.ncsu.edu/depts/ent/notes/O&T/trees/note111/note111.html
Below are some photos from Chris Werle of ambrosia beetle damage on muscadine and fig.