Effect of nectar phenolics on orientation of young adult bees. A, Of 500 young bees (≤ 10-day old) that fostered in P-fed colonies, a total of 304 bees lost from host colonies; B, The drifted bees were found in other hives. Each point represents mean ± standard error. S- or P-fed denotes the colonies fed 25% sucrose syrup and those fed the same syrup with the mixture of IA, PA, CA and G, respectively.