How can I stop my dog from eating trash?

Whenever i see my dog eating garbage I spray with white vinegar, and it isn't helping. she seems to like the flavor. Ive tried other sprays such as citronella etc., but she likes those too. I don't want to spray her eyes because she has very sensitive eyes and they might become damaged. Ive tried using a... show more Whenever i see my dog eating garbage I spray with white vinegar, and it isn't helping. she seems to like the flavor. Ive tried other sprays such as citronella etc., but she likes those too. I don't want to spray her eyes because she has very sensitive eyes and they might become damaged. Ive tried using a lid, but she knows how to open it. I also keep her on a leash at all times so I can pull her away, but she just keeps doing it. is there some command I can teach her to get her to stop, and how do I teach it?
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