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Biocontrol introduction

Target pest: Costelytra zealandica (Coleoptera: Scarabaeidae), grass grub

Agent introduced: Elis sp. (Hymenoptera: Tiphiidae)

Imported: 1921-22

Import source: USA

Released: 1921-22

Release details: 46 cocoons released

Establishment: Not recovered

References

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.

Tillyard RJ (1923). History of the introduction of beneficial insects into New Zealand. Proceedings of the Pan-Pacific Science Congress, Australia, 383-390.