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Biocontrol introduction

Target pest: Coleophora spissicornis (Lepidoptera: Coleophoridae), banded clover casebearer

Agent introduced: Chrysonotomyia trifolii (Hymenoptera: Eulophidae)

Imported: 1961, 1962, 1967, 1968,1969

Import source: 1961,69 near Freiburg, Germany, 1961,62,68,69 Avignon, France all via Delémont, Switzerland

Released: 1967, 1968

Release details: In 1968 1,600 adults were released at Palmerston North. It may have been released in 1969 but numbers and location are unknown

Establishment: Establishment was confirmed at Lincoln in 1977. Established throughout Canterbury and Manawatu by 1982.

Impacts on target: Considered to have a significant impact.

References

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.