Dirty Dozen: Apples Celery Tomatoes Cucumbers Grapes Nectarines Peaches Potatoes Spinach Strawberries Blueberries Sweet Bell Peppers Also: Green beans and kale are moving up on the most sprayed list as well. Here are the Clean 15, and these are the fruits and veggies that you can eat conventionally because they are not sprayed as heavily with pesticides. Clean 15: Onions Avocado Sweet Corn (watch for GMO) Pineapple Mango Sweet Peas Eggplant Cauliflower Asparagus Kiwi Cabbage Watermelon Grapefruit Sweet Potatoes Honeydew Melon