Thompson, W.R. 1958 Biological control in some Commonwealth countries.. Proceedings of the Tenth International Congress of Entomology. Vol. 4. Ottawa 1115 pp.

Notes: [Conference held August 17-25, 1956 in Montreal, Canada] Pest species mentioned include Aspidiotus destructor, Asterolecanium variolosum, Eriococcus coriaceus, E. manukae and Pseudococcus citri.