The Constancy of Cholinesterase Activity in Adult Honeybees

Abstract
Although published data show the Cholinesterase level in adult worker honeybees found in hives to be more than double that in foraging honeybees, no significant change with age or activity was found when bees from indoor cages or free-flying outdoor colonies were assayed. It is concluded that when Cholinesterase levels are only half normal, poisoning of the bees should be suspected.