Fecha de publicación: 14/05/2009 Fuente: WIPO "hive" This invention relates to methods and devices for releasing the stabilized synthetic 10- component honey bee brood pheromone at controlled rates for up to 36 days, thereby enabling commercialization of the pheromone. The preferred device consists of a small heat-sealed plastic pouch, with one face impermeable, and the other face permeable to the pheromone. The non-volatile pheromone exudes through the permeable membrane face at a constant rate of approximately 0.3 mg per day, provided that the exterior surface of the membrane is cleansed of pheromone daily, either by the human hand or by honey bees. The plastic pouch can be mounted in a firm casing, which can then be placed in a holder such that it is suspended between the frames in a honey bee hive unit, or super. Prototype pheromone-loaded devices placed in hives caused an increase in the ratio of pollen foragers to non-pollen foragers, and also caused increases in the weight of pollen brought back to the hive by foraging worker honey bees, the brood comb area and the numbers of adult bees.