Target pest: Coccus hesperidum (Hemiptera: Coccidae), soft brown scale
Agent introduced: Microterys flavus (Hymenoptera: Encyrtidae) = Microterys nietneri (Motschulsky, 1859)
Import source: Australia (may have already been present)
Release details: Released at Nelson
Impacts on target: Common on Coccus hesperidum.
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.