Target pest: Pseudococcus viburni (Homoptera: Pseudococcidae) = Pseudococcus affinis, Pseudococcus obscurus, obscure mealybug
Agent introduced: Coccophagus gurneyi (Hymenoptera: Aphelinidae)
Imported: 1928, 1929, 1933
Import source: 1928 and 1929 Australia, 1933 Australia via California, USA
Release details: 1928 and 1929 consignments were not released. In 1933-35 about 27,000 parasitoids were liberated in Nelson and from Lower Hutt to the Bay of Islands
Establishment: Widespread throughout New Zealand
Impacts on target: Unknown but thought to have some impact.
Cameron PJ, Hill RL, Bain J and 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.