Target pest: Costelytra zealandica (Coleoptera: Scarabaeidae), grass grub
Agent introduced: Rhagigaster comparatus (Hymenoptera: Tiphiidae)
Import source: Victoria, Australia
Release details: 103 released
Establishment: No recoveries recorded.
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.