Read about it here on CNN…
The Dirty Dozen (most amount of pesticides)
Celery
Peaches
Strawberries
Apples
Domestic blueberries
Nectarines
Sweet bell peppers
Spinach, kale and collard greens
Cherries
Potatoes
Imported grapes
Lettuce
The Clean 15 (least amount of pesticides):
Onions
Avocados
Sweet corn
Pineapples
Mango
Sweet peas
Asparagus
Kiwi fruit
Cabbage
Eggplant
Cantaloupe
Watermelon
Grapefruit
Sweet potatoes
Sweet onions