Viggiani, G. 1974 Recherches sur les cochenilles des agrumes. [Research on scale insects of citrus.]. IOBC/WPRS Bulletin 1974/3: 117-120.

Notes: This research is intended to develop biological or integrated control of Planococcus citri in Campania. Other species discussed include Chrysomphalus dictyospermi, Lepidosaphes beckii and Saissetia oleae.