AL Kahtani, Saad Naser2022-05-182022-05-1820031966https://drepo.sdl.edu.sa/handle/20.500.14154/3655The aim of this study is to investigate; 1) Evaluation ofsome internal activities of honeybee colonies under AL-Hassa district environmental conditions, 2) The effect of internal hive temperature regulation by BeeCool Beehive Ventilators units, on some internal activities of honeybee colonies under AL-Hassa district environmental conditions, 3) The factors affecting mating honey bee queens and treatment of laying workers in honeybee colonies under AL-Hassa district environmental conditions.enThesis