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Biocontrol introduction

Target pest: Tuberculatus annulatus (Homoptera: Aphididae), oak aphid

Agent introduced: Aphelinus subflavescens (Hymenoptera: Aphelinidae) = Aphelinus flavus (Nees)

Imported: 1939 (was already present in country)

Import source: Europe via Australia

Released: 1939

Release details: Unknown

Establishment: Recorded from Christchurch, Nelson and Auckland. Uncertain if the imported A. subflavescens established.

Impacts on target: Unknown


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.