The parasitoid Trichogrammatoidea armigera Nagaraja (Hymenoptera: Trichogrammatidae) is a potential candidate for biological control of the millet head miner Heliocheilus albipunctella (de Joannis) (Lepidoptera: Noctuidae) in the Sahel

- T. armigera is the most important parasitoid of eggs of the millet head miner in Niger.
- Highest parasitism is observed at panicle emergence and on early-maturing material.
- T. armigera effective against the millet head miner but not the millet stem borer.
- T. armigera can be mass reared on eggs Corcyra cephalonica year-round.
- Coniesta ignefusalis and Noorda blitealis are not suitable for T. armigera.
- Helicoverpa armigera could maintain T. armigera population.