6.4.2. Recommendations for incubator light conditions for maintaining adult workers in the laboratory

Caged workers should be maintained in an incubator under dark conditions. Workers and cages should be examined and manipulated under dim light conditions, preferably using red light that emits 660-670 nm wavelengths that are not visible to honey bees (Menzel and Backhaus, 1991). To produce light of this wavelength, special bulbs can be purchased or standard incandescent bulbs emitting human-visible light can be covered with a red lens so that light produced is of the appropriate wavelength.