There's something called "Bitter Apple" that you can get at a pet store. If you spray the hoses with it, Daisy will stay away from them because they don't like the smell. Another more drastic, but very messy, answer is to put some drops of Tabasco sauce on the hose. Believe me, if you use that trick Daisy will never again get close to the hose. Of course, being a puppy, she'll find something else to chew on.