Anyone have a link as to why we should not plant grocery store potatoes? I know grocery store potatoes are treated with a growth inhibitor. I know grocery store potatoes may carry disease. I also know you should not compost grocery store potatoes, because of the growth inhibitors. However, I can not find a site to back up my knowledge. My mother is 78 years old and in my opinion a touch looney. She has planted a row of potatoes in her garden. The row was growing nicely and now suddenly the entire row is dead. She lives in a nice sub-division with friendly neighbors. She is convinced one of her neighbors has sprayed her row of potato plants killing them. This really is a ridiculous hypothesis. She hasn't made any enemies, and why would someone sabotage only the potatoes? All other garden plants are fine. Does anyone have a link bookmarked that would back up my advice, that it was planting grocery store potatoes that killed the row? She isn't heeding my advice, because back in the day they always planted grocery store potatoes.