Biocontrol introduction
Target pest: Listroderes difficilis (Coleoptera: Curculionidae), vegetable weevil
Agent introduced: Stethantyx spp. (Hymenoptera: Ichneumonidae)
Imported: 1965
Import source: Argentina and Uruguay via Australia
Released: 1965
Release details: Adults released at Palmerston North
Establishment: Not recovered
References
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.