ππ«π«π₯πππ’ππ§ππ’π¬π, scientist & journalistIntroduced Parasite Suspected of Killing Wild Bumblebees in CanadaA mysterious decline in North American bumblebee populations is apparently the result of βspilloverβ of pathogen-infected commercialβ¦Jul 27, 2008Jul 27, 2008