In Africa, Setaria sphacelata seed heads are an important food source for several bird species, including the Long-tailed Widowbird.
•
Recognised pests in cultivation include the buffel grass seed caterpillar (Mampava rhodoneura) and the fungus Pyricularia trisa.
The Long-tailed Widowbird feeds on a distinct variety of seeds, including those of Setaria sphacelata (Twisted-leaf bristle grass), Paspalum dilatatum (Common paspalum), Paspalum distichum (Couch paspalum), Pennisetum clandestinum (Kikuyu grass), Triticum (wheat), Themeda triandra (Rooigras), and Senecio juniperinus (groundsel).