Positive (means±SD) neonicotinoid detections in groundwater from 2008–2012, State of Wisconsin Department of Agriculture Trade and Consumer Protection.

aAcreage estimates generated from USDA National Agricultural Statistics Service – Cropland Data Layer, 2008–2012 [26].bRow crops class is the sum of the following crop areas (ha): maize, soy, small grains, wheat, peas, sweet corn, and miscellaneous vegetables and fruits.cPercent potato calculated as the potato area grown annually divided by total arable row crop acreage (other row crops + potato).dPositive neonicotinoid detections extracted from long-term, groundwater wells maintained by the WI-DATCP-EQ Program.