Fecha de publicación: 14/10/1998 Fuente: WIPO "varroa" The present invention concerns a method for the control of various diseases in bee-hives by applying to the bee-hives an effective amount of an essential oil in a slow-release formulation whereby the term oils embraces but is not limited to oils extractable from plant or the essential component thereof such as monoterpenes like menthol, geraniol, thymol, myrcene, citral, limonene, carene, camphor, eugenol, or cineol (eucalyptol); natural oils like lemon oil, eucalyptus oil, or neem oil; or organic acids like formic acid, acetic acid or oxalic acid. Most preferred are monoterpenes like thymol or menthol. Most preferred is thymol.