oxalic acid treatment in a beehive. seasonal beekeeping treatment against the varroa mite.

varroa mite vaporising oxalic acid bee house farming beekeeper beekeeping honeybee apiarist outdoor hives harvest keeping ecologically insects animals nectar apiculture apiary honey natural pollination farm bees insect pollen production box hive colony yard outdoors beehive garden rural wooden background nature treatment seasonal heated element attached battery vaporises