Target pest: Quadraspidiotus perniciosus (Hemiptera: Diaspididae) = Diaspidiotus (Comstock), armoured scales
Agent introduced: Encarsia citrina (Hymenoptera: Aphelinidae)
Import source: USA
Released: Unknown but parasitoid was present in New Zealand at time of importation
Cameron PJ, Hill RL, Bain J, Thomas WP (1989). A Review of Biological Control of Invertebrate Pests and Weeds in New Zealand 1874-1987. Technical Communication No 10. CAB International Institute of Biological Control. DSIR Entomology Division. 424p.