Target pest: Epiphyas postvittana (Lepidoptera: Tortricidae), light brown apple moth
Agent introduced: Voriella uniseta (Diptera: Tachinidae)
Cameron et al. (1989) - parasitised E. postvittana larvae and pupae were collected in eastern Australia and Tasmania in 1967 and 1969 and imported into quarantine at Nelson. Eighty-one V. uniseta emerged in 1967, of which 50 were directly released; 224 emerged in 1969, of which 200 were directly released. Attempts to culture V. uniseta were unsuccessful.
Cameron et al. (1989) - 50 adults were released at Appleby, near Nelson in 1967 and 200 adults released at Appleby and Nelson in 1969. Releases were made into tree cages enclosing E. postvittana infestations.
Cameron et al. (1989) - adults of a new generation were observed at Appleby in September 1967 (following releases in April/May of that year), but V. uniseta failed to become established.
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.