Target pest: Coccus hesperidum (Hemiptera: Coccidae), soft brown scale
Agent introduced: Microterys nietneri (Hymenoptera: Encyrtidae) = Microterys flavus
Import source: Australia (may have already been in New Zealand)
Import notes: Introduced as M. flavus (Howard)
Release details: Released at Nelson
Impacts on target: Common on Coccus hesperidum but its impact is unknown.
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.