Honeybee colony welfare encompasses the wellbeing of millions of individual bees as well as the superorganism colony. Varroa mite, disease, pesticides, and poor husbandry all cause colony-level suffering.
Varroa mite infestation causes individual bee suffering through physical feeding on bee fat body and by vectoring viruses that cause deformed wings. Colony-level consequences of failing to treat Varroa include collapse and the death of tens of thousands of bees. Pesticide exposure affects bee learning, navigation, and the ability of queens to reproduce. Overcrowded or poorly sited hives cause chronic stress. Responsible beekeeping requires regular inspection and treatment where needed - neglected hives cause enormous suffering.