Fecha de publicación: 23/06/2016 Fuente: WIPO "apiculture" As described below, the present invention features methods and compositions for controlling a honey bee parasitic mite or for the treatment or prevention of a parasitic mite infestation in a honey bee hive. In particular embodiments, the invention provides a miticidal delivery device, wherein the device is a strip comprising at least about 15% potassium salts of hop beta acids, solvent and an emulsifier.