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History of Varroa Heat Treatment in Central Europe (1981-2013)

Introduction Hyperthermia is a method, where the bee hive or bees alone are heated to a temperature that is fatal for the varroa, but causes no harm to the bees. Thermotherapy does not produce residues and also minimizes the likelihood of mites developing resistance. Unlike other biotechnical control methods, it does not reduce the honey yield and can be used throughout the year (Cadosch, 2014). Hyperthermia is a relatively old concept, first reported in the 1970s. Since then, successful thermotherapy has been reported from many parts of the world. The various methods and technology used to heat treat varroa developed independently in many parts of the world. This article reviews the different hive designs used for hyperthermia in the Czech and Slovak Republics, from the earliest trials started in 1981 through today.