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4774. Murray, Tim. 1990 Jan.. Fungicide resistant footrot in wheat.. presentation at STEEP Annual Review, Moscow, ID.
Strawbreaker footrot (Pseudocercosperella herpotrichoides) is becoming resistant to some common fungicides (Benlate, Topsin, Mertek). Incidences have been documented in continuous wheat and in 2 and 3 year rotations. Crop rotation will give moderate control. Two new varieties have some resistance to the disease - Hyak and Madsen. Delayed seeding date is the best control strategy. Dealy about 7-10 days, so planting occurs in late September. For crop monitoring, a 10% obvious infection is the economic threshold for treatment. There appears to be reduced footrot in reduced tillage systems.