The cause(s) of the root/crown rot problem of sweet corn in the Willamette Valley the past 10 years has been a challenge to identify. Root rot is the precursor to crown rot symptoms. Many species of Fusaria and Pythium have been isolated from symptomatic roots and crowns.
Experiments were conducted in the field and greenhouse in 1998 to help pinpoint the pathogenic agent of corn root rot and to evaluate the efficacy of soil treatments on managing this disease.
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