Here is a list of the ''Clean 15'' fruits and vegetables that are least likely to contain pesticide residue:
Onion
Avocado
Sweet Corn
Pineapple
Mango
Asparagus
Sweet Peas
Kiwi
Cabbage
Eggplant
Papaya
Watermelon
Broccoli
Tomato
Sweet Potato
Source: Environmental Working Group