An environmental advocacy group is out today with its annual report on pesticide residues on fruits and vegetables. Raisin lovers, take note. Nearly all conventionally-grown raisins are contaminated by traces of two or more pesticides, according to test data from the U.S. Department of Agriculture cited in Shopper’s Guide to Pesticides in Produce, the report by the Environmental Working Group, based in Washington, D.C. The average sample contained more than 13 pesticides, and one sample tested positive for 26. Even most organic raisins sampled by the USDA tested positive for at least one pesticide. The environmental group recommends that consumers buy organic raisins when possible, or avoid raisins in favor of fresh fruits and vegetables with lower levels of pesticide contamination. According to the analysis, the 12 items with the most pesticide contamination were, from worst to best: strawberries, spinach, kale, nectarines, apples, grapes, peaches, cherries, pears, tomatoes, celery and potatoes.