EWG’s 2015 Shopper’s Guide to Pesticides in Produce™
EWG (the Environmental Working Group) analyzed pesticide residue testing data from the U.S. Department of Agriculture and Food and Drug Administration to come up with rankings for these popular fresh produce items. All 48 foods are listed below from worst to best (lower numbers = more pesticides)
Note: EWG analyzed pesticide tests of 48 popular produce items. Domestic and imported versions of two items – blueberries and snap peas – showed sharply different results, so we have ranked those domestic and imported items separately. As a result, the full list of foods ranked by the Shopper’s Guide displays 50 entries. — taken from EWG.org site

1. Apples
2. Peaches
3. Nectarines
4. Strawberries
5. Grapes
6. Celery
7. Spinach
8. Sweet bell peppers
9. Cucumbers
10. Cherry tomatoes
11. Snap peas – imported
12. Potatoes
13. Hot Peppers
14. Blueberries – domestic
15. Lettuce
16. Kale/Collard greens*
17. Cherries
18. Plums
19. Pears
20. Green beans
21. Raspberries
22. Winter squash
23. Tangerines
24. Blueberries – imported
25. Carrots
26. Summer squash*
27. Broccoli
28. Snap peas – domestic
29. Green onions
30. Bananas
31. Oranges
32. Tomatoes
33. Watermelon
34. Honeydew melon
35. Mushrooms
36. Sweet potatoes
37. Cauliflower
38. Cantaloupe
39. Grapefruit
40. Eggplant
41. Kiwi
42. Papayas*
43. Mangos
44. Asparagus
45. Onions
46. Sweet peas frozen
47. Cabbage
48. Pineapples
49. Sweet Corn*
50. Avocados
* A small amount of sweet corn, papaya and summer squash sold in the United States is produced from GE [genetically engineered] seedstock. Buy organic varieties of these crops if you want to avoid GE produce.