Target pest: Saissetia oleae (Hemiptera: Coccidae), black scale
Agent introduced: Coccidoctonus dubius (Hymenoptera: Encyrtidae)
Import source: Australia and possibly California, USA
Release details: Released at Nelson
Impacts on target: Parasitoid of Moranila californica in S.oleae. M. californica was probably accidentally introduced.
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.