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Biocontrol introduction

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

Agent introduced: Anthocoris nemorum (Hemiptera: Anthocoridae)


1965-66, 1966-67

Import source:

Kent, England

Import notes:

Cameron et al. (1989) - eight consignments (five in 1965-66 and three in 1966-67) of A. nemorum were received from Kent, England.



Release details:

Cameron et al. (1989) - a total of 1,000-2,000 individuals imported 1965-67 were released at two sites in the Nelson district of the South Island.


Cameron et al. (1989) - no recoveries were made at the release sites in the season following release. Failure to establish was attributed to relatively high winter temperatures.


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.