Target pest: Mythimna separata (Lepidoptera: Noctuidae), cosmopolitan armyworm
Agent introduced: Trichogramma brassicae (Hymenoptera: Trichogrammatidae) = Trichogramma maidis
The biocontrol agent imported as Trichogramma evanescens was qualified by Cameron et al. (1989) as Trichogramma evanescens (sens. lat.) because a 1980 publication by Pintureau & VoegelĂ© showed that in Europe it included a second species, T. maidis [subsequently synonymised with T. brassicae (Noyes 2019) (Universal Chalcidoidea Database - accessed 7 November 2022)]. Therefore, T. brassicae was potentially included in the 'T. evanescens' importations and releases. See the Trichogramma evanescens (sens. lat.) introduction record for details.
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.