Target pest: Acyrthosiphon pisum (Homoptera: Aphididae), pea aphid
Agent introduced: Ephedrus plagiator (Hymenoptera: Aphidiidae)
Import source: Japan via University of California, Riverside.
Establishment: Early recoveries made in Hawkes Bay and Lincoln but does not appear to have persisted.
Cameron PJ, Hill RL, Bain J and 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.