Sociochemical alteration of honeybee hoarding behavior.

Hoarding experiments were conducted with honeybees (Apis mellifera L.) in cages containing comb treated with either 2-heptanone, isopentyl acetate, citral, or geraniol. 2-Heptanone increased hoarding rates; isopentyl acetate decreased hoarding rates; citral and geraniol had no observed effect.