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Biocontrol introduction

Target pest: Quadraspidiotus perniciosus (Hemiptera: Diaspididae) = Diaspidiotus (Comstock), armoured scales

Agent introduced: Encarsia perniciosi California strain (Hymenoptera: Aphelinidae)

Imported: 1959-60

Import source: ? Via India

Released: Unknown but parasitoid was present in New Zealand at time of importation

Establishment: Present in New Zealand before introduction. Not possible to ascertain if imported strain has had any impact


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.