Pest Profile

Wheat midge (a.k.a. Orange Wheat Blossom Midge)
Sitodiplosis mosellana (Gehin)

Pest Description

Adults are tiny (1.5-2.5 mm long) with orange-red bodies that resemble mosquitos. Larvae, the damaging life stage to wheat, are also tiny and white to orange in color. Larvae actively feed in moist conditions during early summer and continue feeding for several weeks. Larval feeding can damage developing kernals and reduce yield. Feeding damage also increases the chances of fungal infections of wheat heads.


Source of information

Phillip Glogoza (, Saskatoon Research Centre (Canada)

Pest Diagnostics


Pest photo source

Phillip Glogoza (

Plant Diagnostics


Plant diagnostic image(s) source

Phillip Glogoza (