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Biocontrol introduction

Target pest: aphids (Hemiptera: Aphididae)

Agent introduced: Chrysopa sp. 2 (Neuroptera: Chrysopidae)

Imported: 1925, 1927

Import source: British Columbia, Canada

Released: 1925, 1927

Release details: 1926 - 650 imported adults released in Nelson and 650 in Christchurch then a further 800 lab reared adults released at Wakefield and Nelson. 1927 - 250 eggs were released in Christchurch and 800 in Nelson

Establishment: Not 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.