Mendel, Z., & Blumberg, D. 1991 Colonization trials with Cryptochetum iceryae and Rodolia iceryae for improved biological control of Icerya purchasi in Israel.. Biological Control 1: 68-74.

Notes: Rodolia iceryae could not complete its development on either Icerya purchasi or I. aegyptiaca; after two years, it was still uncertain whether C. icerya had been established.