Foraging behavior of honey bees and bumble bees on brussels sprout brassica oleracea grown to produce hybrid seed
Free, J.B.; Williams, I.H.
Journal of Apicultural Research 22(2): 94-97
Bees foraging on B. oleracea L. grown for hybrid seed usually preferred to visit 1 cultivar, but not to the exclusion of the other. Sometimes honeybees and bumble bees discriminated almost completely between the cultivars present, even on a caged plot. The need is stressed for growers to use cultivars between which bees do not discriminate.