FORAGING BEHAVIOUR OF HONEYBEES AND BUMBLE BEES ON BRUSSELS SPROUT GROWN TO PRODUCE HYBRID SEED
J B FREE AND I H WILLIAMS
Bees foraging on Brussels sprout Brassica oleracea L. plants grown for hybrid seed usually preferred to visit one cultivar, but not to the exclusion of the other. Sometimes honeybees and bumble bees discriminated almost completely between cultivars present, even on a caged plot. The need is stressed for growers to use cultivars between which bees do not discriminate.