title: Effects of Sorbic Acid and Methyl Paraben on Susceptibility of Alfalfa Leafcutting Bees (Megachile rotundata) to Chalkbrood (Ascosphaera aggregata)
authors.affiliation: Agriculture and Agri-Food Canada Research Centre, Lethbridge, Alberta, T1J 4B1, Canada
authors.initials: MS
authors.lastname: Goettel
authors.initials: GM
authors.lastname: Duke