you can view this Shopper's Guide to Pesticides from the Environmental Working Group as well as download a pdf booklet at EWG's FoodNews :: Shopper's Guide to Pesticides


The Dirty Dozen: These have had the most amount of pesticides used on them during growing time:

Peach
Apple
Bell Pepper
Celery
Nectarine
Strawberries
Cherries
Kale
Lettuce
Grapes (Imported)
Carrot
Pear


The Clean 15: The still have had some sort of pesticide used on them but they are not as heavily doused like the above dirty dozen.

Onion
Avocado
Sweet Corn
Pineapple
Mango
Asparagus
Sweet Peas
Kiwi
Cabbage
Eggplant
Papaya
Watermelon
Broccoli
Tomato
Sweet Potato