Consumer Reports recently conducted an investigation to determine which produce you should buy organically. When analyzing a fruit or vegetable, they looked at three factors: The pesticide residue on each food, the frequency with which the pesticides were used and the toxicity of the pesticide. Based on their findings, the following list of produce should be bought organically. Print out this list and place it in your purse so you can consult it at the supermarket. For more guidelines visit Consumer Reports.