The Cornell Chemical Ecology Core Facility (CCECF) provides pesticide residue analysis for researchers, beekeepers, farmers, government agencies, and numerous stakeholders organizations and individuals throughout North America. The lab is capable of analyzing bees, pollen, wax, propolis, soils, leaves, fruits, silicone bands, and bird blood. With One Hive funding, the CCECF completely overhauled its multi-residue pesticide method, making it more sensitive and broadening its target range. The revamped method now quantifies 102 pesticides, with most detection limits below 1 part per billion (ppb).