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Biocontrol introduction

Target pest: Phthorimaea operculella (Lepidoptera: Gelechiidae), potato tuber moth

Agent introduced: Copidosoma koehleri (Hymenoptera: Encyrtidae)

Imported: 1949, 1964, 1966-67, 1968

Import source: 1949 North America via Australia, 1964 northern Argentina and southern Brazil via CIBC Station, Fontana, California, 1966-67 and 1968 via CIBC Bangalore, India

Released: 1949, 1966-67, 1968

Release details: 1949 Released at Nelson (numbers not known). It is not known if releases occurred in 1964. In 1966-67 169,000 were released at Lincoln, 12,000 at Nelson and 18,500 at Palmerston North. 1968 254,000 were released at Lincoln.


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.