>>Cell death in honeybee (Apis mellifera) larvae treated with oxalic or formic acid Ales Gregorca, Azra Pogacnika and Ivor D. Bowenb Does the paper talk about any harm to adult bees? The reason I ask is because the OA trickle is done when the colonies are broodless. Waldemar -- Visit www.honeybeeworld.com/bee-l for rules, FAQ and other info ---