Who Is This Is?

I've had sporadic issues with the pictured critter to left.  Usually found chewing away the edge of leafy stuff.  I've looked through my books but can't make a positive ID although I suspect it's either an Armywork or Corn Earworm.

Decided to ask on GardenWeb.com in hopes some wise soul will identify.  Once I know what I'm dealing with I can begin designing my strategy to deal with them.

I've seen them up to 1-1/4" long...