Biocontrol introduction
Target pest: Mayetiola destructor (Diptera: Cecidomyiidae), hessian fly
Agent introduced: Platygaster minutus (Hymenoptera: Platygastridae) = (possibly Platygaster hiemalis)
Imported: 1893
References
Tillyard RJ (1923). History of the introduction of beneficial insects into New Zealand. Proceedings of the Pan-Pacific Science Congress, Australia, 383-390.