If you're concerned about pesticides, either avoid corn or look for organic cracked corn. (dogcare.dailypuppy.com)
Most dogs aren't especially picky about what they eat, so if you offer cracked corn to your dog he will probably give it a try. (dogcare.dailypuppy.com)
The real question is, should you be feeding cracked corn to your dog? (dogcare.dailypuppy.com)