Studies of the effects of pollination on floral scent and bee visitation remain rare, particularly in agricultural crops. Rodriguez-Saona et al. study highbush blueberry, Vaccinium corymbosum, and find that flowers left open to pollination have 32 % lower volatile emissions than those from which pollinators have been excluded. Field observations indicate that more bees visit bushes with pollinator-excluded flowers, suggesting that greater emissions of volatiles help guide bees to unpollinated flowers and thus increase plant fitness.
