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I've used garlic, rosemary,I've used garlic, rosemary, dried blood; extracts that are commercially available or homemade. They work for one day. The best deterrent is a moving or inanimate object. I use pinwheels, balloons, and a dog cutout that pivots like a weather vane(I've heard fake owls work also). It works well with deer and rabbits (so far this year anyway).

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