My puppy is a Border Collie x Kelpie and she is about 10 months old now. She's been digging up my father's small fruit plants and he's getting really annoyed and wants to give my puppy away because of the trouble caused. She lives in our backyard most of the time and sleeps inside. We try to walk her as much as possible, usually 2-3 times a day. Is there any way to stop this behaviour? Please help!