The 2019 Dirty Dozen & Clean Fifteen produce report 

As reported by EWG, The Environmental Working Group & The U.S. Department of Agriculture:
When should you consider purchasing organic produce, which is usually more costly than conventionally grown fruits and vegetables? KosherEye presents the printable 2019  EWG.ORG list to help you make that choice!
The U.S.Department of Agriculture found hundreds of  different pesticides and pesticide breakdown products on thousands of produce samples analyzed. 

EWG DIRTY Dozen - produce that is most likely to be contaminated by pesticides
Strawberries, Spinach, Kale, Nectarines, Apples, Grapes, Peaches, Cherries, Pears, Tomatoes, Celery, Potatoes,

EWG CLEAN Fifteen -   produce that is least likely to be contaminated by pesticides.
Avocados, Sweet Corn*, Pineapple, Frozen Sweet Peas, Onions, Papaya, Eggplant, Asparagus, Kiwi, Cabbage, Cauliflower, Canteloupe, Broccoli, Mushrooms, Honeydew

For full details visit: EWG.org 
For a small donation the EWG website will give you access to a pocket sized printable list.