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Biocontrol introduction

Target pest: Helicoverpa armigera (Lepidoptera: Noctuidae), tomato fruitworm

Agent introduced: Microplitis croceipes (Hymenoptera: Braconidae) = Glabromicroplitis croceipes



Import source:

Mississippi, USA

Import notes:

Cameron et al. (1989) - Microplitis croceipes was first imported from the United States Department of Agriculture at Stoneville, Mississippi in 1986. It has been successfully reared on H. armigera in New Zealand.



Release details:

Cameron et al. (1989) - released commenced in January 1987 in Auckland, Gisborne (Poverty Bay) and Hastings (Hawke’s Bay) in the North Island.


Cameron et al. (1989) - minor recoveries have been made in each of the release areas (Auckland, Gisborne, Hawke’s Bay).

Impacts on target:

Cameron et al. (1993) - Microplitis croceipes, in conjunction with Cotesia kazak [see the C. kazak introduction entry], is categorised as exerting “partial” control (defined as “additional control remains commonly necessary but…pest outbreaks occur less frequently”) over Helicoverpa armigera.


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.

Cameron PJ, Hill RL, Bain J, Thomas WP (1993). Analysis of importations for biological control of insect pests and weeds in New Zealand. Biocontrol Science and Technology 3(4): 387-404