Amoeba- and Nosema-infected queen honeybees and worker attendants shipped in mailing cages to Western Canada
T. P. Liu, D. L. Nelson And M. M. Collins
Queen honeybees (Apis mellifera) and worker attendants, brought via air mail in to Western Canada, were examined for both Nosema apis and Malpighamoeba mellificae in each of two years. Seven of 53 queens examined were infected with N. apis only, four with M. mellificae only, and 13 with both. One hundred and eight of 406 workers examined were infected with N. apis only, 46 with M. mellificae only, and 95 with both. The significance of these observations is discussed.