Very similar to Sparganothis sulfureana - Sparganothis Fruitworm Moth. I think the easiest way to separate them may be the parallel dark lines on top of the thorax in Sparganothis Fruitworm.

Durham, NC 7/12/09

Durham, NC 7/18/07

Durham, NC 7/19/07

Orange Co., NC 8/24/08