So far, I haven't had any problems with moles and squirrels trying to eat my onions, shallots or garlic. Of course, I do have a cat that has essentially depopulated the moles over the past three years though the squirrels (and most of the chipmunks) still elude him. Sometimes though I wish he wasn't so darn efficient since my lilies are spreading like wild and there's going to be a battle royale between the lilies and Jerusalem Artichokes this season!