The wheat midge (Sitodiplosis mosellana) is found in most areas around the world, wherever wheat is grown. Significant damage to wheat crops occurs regularly in Alberta, Saskatchewan, Manitoba, southern British Columbia, Minnesota, North Dakota, Montana and Idaho.

The midge is also called the “orange wheat blossom midge” because it is orange in color and it infests wheat at pollination (flowering). It originated in Europe and has been an economic pest in Canada and the northern U.S.

Due to the late planting of hard red spring wheat in North Dakota this year, much of our HRSW will head after peak wheat midge emergence and be at a lower risk for wheat midge infestation and crop damage.

Below you'll find information on the wheat midge risk for the past 10 years in North Dakota. The annual Wheat Midge Larval Survey is funded by the North Dakota Wheat Commission. These maps illustrate the risk of wheat midge in North Dakota in the upcoming growing season.

Wheat midge (Sitodiplosis mosellana) belongs to a group of flies known as gall midges (Cecidomyiidae), and is found around the world wherever wheat is grown. Significant damage to wheat crops has been reported in Alberta, Saskatchewan, Manitoba, Minnesota, North Dakota and several regions of British Columbia.

Infestations of wheat midge can reduce crop yields and lower the grade of the harvested grain. Midge may exist at low population levels for several years before they become a significant problem. But if conditions become favourable, popula …

Wheat midge, Sitodiplosis mosellana (Géhin) (Diptera: Cecidomyiidae), is an established insect pest in most wheat- producing regions of the world. It was introduced into western Canada over 100 years ago.

Mar 14, 2025 · Historically, wheat midge has caused significant loss in yield and quality in spring wheat and durum wheat in the northern tier of North Dakota counties. For 2024, wheat midge was positive at only three field sites (2% of the sites sampled) in three counties including Towner in the northeast, Pierce in the north-central region, and Ward in the ...

Jul 11, 2013 · The wheat midge (Sitodiplosis mosellana) is a pest found in wheat that can have significant impacts on your yields and grain quality. These insects overwinter as larvae and emerge as adults from their pupal stage in late June to early July (typically 600-900 growing degree days (GDD), ask your agronomist how many GDD`s we have…

Biology and life history: The wheat midge (or orange wheat blossom midge) is a serious wheat pest in the Northern Great Plains, USA and Canadian provinces, and in parts of the Pacific Northwest. It is a small fly (0.08 to 0.12 inch), with an appearance similar to a mosquito.