Target pest: Sirex noctilio (Hymenoptera: Siricidae), sirex wood wasp
Agent introduced: Rhyssa amoena (Hymenoptera: Ichneumonidae)
1965, 1967, 1968
Cameron et al. (1989) - in 1965, two male and four female R. amoena, collected in Europe, were sent to New Zealand from the UK. Only a single male resulted from insectary oviposition. In 1967, 24 males and 21 females arrived, and in 1968, 14 males and 17 females. Only a few progeny were obtained from insectary rearing which continued until 1971.
Cameron et al. (1989) - not released.
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.