"Dirty dozen fruits and veggies" (for my sister)

'Dirty Dozen', highest in pesticides, buy organic:
Peaches
Apples
Sweet Bell Peppers
Celery
Nectarines
Strawberries
Cherries
Lettuce
Grapes (Imported)
Pears
Spinach
Potatoes

'Clean Dozen', lowest in pesticides:
Onions
Avocados
Sweet Corn (frozen)
Pinapple
Mango
Sweet Peas (frozen)
Asparagus
Kiwi
Bananas
Cabbage
Broccoli
Eggplant

Link to full list: http://www.foodnews.org/

Link to printable guide: http://www.foodnews.org/pdf/EWG_pesticide.pdf