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Biocontrol introduction

Target pest: Tetranychus urticae (Acari: Tetranychidae), two-spotted spider mite

Agent introduced: Neoseiulus fallacis (Acarina: Phytoseiidae)

Imported: 1972, 1973, 1975

Import source: Michigan, USA

Released: 1973-76

Release details: Many thousands released at Appleby and Hope (Nelson), Loburn and Lincoln (Canterbury), Hastings, Waimate and Central Otago.

Establishment: Established at Loburn, Lincoln, Hastings and Central Otago

Impacts on target: Largely displaced by Phytoseiulus persimilis


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.