Clean 15 (Least Pesticides)

 1 Avocados
 2 Sweet Corn
 3 Pineapples
 4 Cabbages
 5 Onions
 6 Sweet Peas Frozen
 7 Papayas
 8 Asparagus
 9 Mangoes
10 Eggplants
11 Honeydew Melons
12 Kiwis
13 Cantaloupes
14 Cauliflower
15 Broccoli

Sumarized from 
https://www.ewg.org/foodnews/clean-fifteen.php