Occurrence and Impact of Corn Diseases in 1999

Date
1999-12-02
Authors
Munkvold, Gary
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This year brought us a few surprising and a few not-so-surprising disease episodes. We have had two consecutive years of very mild winters, which is nice in January, but it can come back to haunt us in May. Although the endemic pathogens of this part of the country are adapted to cold winters, survival of some of them can be enhanced by mild winter weather. Some pathogens that are more sensitive to cold may not be much of a problem here, but they can become a problem if weather is consistently mild. This year it was evident that the mild winters have contributed to increases in disease in both corn and soybeans. In corn, the disease affected most by this is Stewart's wilt, but others may be affected, too.

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