Rotundo, G. 1978a Isolamento massale di femmine vergini di Pseudococcus calceolariae (Mask.) mediante l'uso di un ormone giovanile. [Isolation of virgin females of Pseudococcus calceolariae (Mask.) (Homoptera, Coccoidea) using juvenile hormone in emulsion.]. Bollettino del Laboratorio di Entomologia Agraria 'Filippo Silvestri'. Portici 35: 162-168.

Notes: Method devised in order to eliminate time-consuming procedure to mechanically remove minute male nymphs; results show the hormone treatment does not inhibit the production of the sex pheromone.