Abstract In the Canadian Maritimes, many beekeepers rent honey bee, Apis mellifera Linnaeus (Hymenoptera: Apidae), hives to growers of lowbush blueberry, Vaccinium angustifolium (Ericaceae), for pollination services. Anecdotally, have less vigour following pollination, potentially due higher Nosema spp. (Nosematidae) spore loads, microsporidian causing nosemosis. We undertook a study determine ...