Target pest: Agrotis ipsilon (Lepidoptera: Noctuidae), greasy cutworm
Agent introduced: Apanteles ruficrus (Hymenoptera: Braconidae) = Cotesia ruficrus (Haliday)
Import source: Pakistan
Release details: Approximately 4,000 mass-parasitised larvae and 40,000 adults were released from Huntly north in the North Island and near Nelson in the South Island.
Establishment: Established 1970
Impacts on target: Consistently parasitises 5-10% of A. ipsilon in early summer.
Impacts on non-targets: Also parasitises Mythimna separata and Chrysodeixis eriosoma.
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.