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Foreword by APIMONDIA President
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A. I. AARNIO aged virgin queens American foulbrood apiary apicultural APIMONDIA APIMONDIA President August bee colonies bee diseases bee house bee production Beekeeping in Cold bottom board brood rearing cages CANNAMELA centre cleansing flights climatic conditions Cold Climate Zones combs cover death rate Dinocap Dipoli Double walled double-walled hives exist experiments Finnish beekeepers food consumption foulbrood fungicides HARNAJ HARTIKKA Hattula heat heater Helsinki hive bodies hive entrance honey yield honeybees important insulated hives Italian bees KOIVULEHTO Langstroth Langstroth hive Lapland Lohja mating nucleus methods museum Norrbotten northern regions Norway Nosema apis nosema diseased bees obtained organized Otaniemi overwintering packing participants plants pods Polar Circle pollination pollination by bees Potassium sorbate Prof queen breeding queen rearing seeds simple-walled single walled hives single-walled hives strains strong colonies sugar summer Sweden Symposium Tampere temperature tested Urho KEKKONEN various ventilation VESTERINEN winter cluster