Published online by Cambridge University Press: 31 May 2012
A device designed to measure amount of pesticide solutions consumed by three species of bees (Megachile rotundata (F.), alfalfa leafcutting bee; Nomia melanderi Cockerell, alkali bee; and Apis mellifera L, honey bee) is described in detail. Isolated bees fed freely from capillary tubes filled with known mixtures of pesticides and honey solutions. The change in volume of solution was used in determining the exact amount of pesticide consumed by each individual.