Pesticides
In November 2010, the United States Environmental Protection Agency reported pesticide residues on common foods as determined by the USDA. Also summarized by the Environmental Working Group, blueberries were indicated as a significant concern.
Because "wild" is a marketing term generally used for all low-bush blueberries, it is no guarantee that pesticides have not been used. For example, the application of pesticides is common in large-scale blueberry monoculture in Maine.