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Biocontrol introduction

Target pest: Acyrthosiphon pisum (Homoptera: Aphididae), pea aphid

Agent introduced: Aphidius ervi (Hymenoptera: Braconidae)

Imported: 1977-1981

Import source: 1977 Japan via University of California, Riverside. 1977 Israel via University of California Riverside. 1977 Greece via University of California, Riverside. 1977 Tashkent (USSR) via University of California, Riverside .1977 Belgium via University of California, Riverside. 1979-1980 Tasmania. 1981 Rothamstead, UK.

Released: Importations from Japan 1977-78, Israel 1977-78, Greece 1977-78, Tashkent 1977-79, Belgium 1977-81, Tasmania 1979-81, Rothamsted 1981

Establishment: Tashkent strain has persisted in southern and central areas of the South Island. Tasmanian and Belgian strains established in North Island, A. ervi was throughout North Island by 1986.

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.