I would like to plant apple trees in my yard and think I have the perfect spot (sunny, south side). I will be getting the Backyard Orchardist based on your recommendation in another post, but was hoping someone could help with a couple of questions I have now. Can a crabapple tree serve as a pollinator for the Gala and/or Cameo? Can the Gala and Cameo pollinate each other? We have a huge deer population that feasts on all the gardens in our neighborhood ...any suggestions on how to keep them from eating the apples? Someone told me that deer don't like walking on river rock (appx 1" - 1 1/2" rocks) because it feels unstable to them, and so using river rock as a mulch and extending it out in a wide circle around the base of the tree will make the area around the apple tree unstable to them and deter them from getting close enough to eat the fruit. Is that an urban myth or is that plausible? Thanks for whatever help you can give!