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Biocontrol introduction

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

Agent introduced: Microphthalma michiganensis (Diptera: Tachinidae)

Imported: 1926-28

Import source: Canada

Released: 1926-28

Release details: 106 adult tachinids released near Wellington and in Canterbury

Establishment: No recoveries recorded.


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.