[yorkieusa]

When I was training mine, I would say, "No bark" and hold my forefinger on top of her nose for a minute. She learned fairly quickly when I didn't want her to bark. She has never been really barky, though, so you may need stronger measures. Sometimes pennies in a can will help. Have you tried that? You just have to try different things to see what will work with your yorkie. It's best to stop it when they are still very young.