This will reduce the amount of surface straw that can produce air-borne spores during the growing season. Do not plant winter wheat on land adjacent to spring wheat that was infected with tan spot. Where economically practical, apply Tilt, which is registered for control of this disease. Yield increases up to 15 per cent have been recorded. Tan spot of wheat caused by Pyrenophora tritici repentis .
Durum wheats are particulary susceptible.
Red smudge on durum wheat kernals caused by tan spot infection. Low levels of smudge could drop the wheat in grade all the way to sample. The user of this information agrees to the terms and conditions in the copyright and disclaimer . Her Majesty the Queen in the Right of Alberta. All rights reserved.