Be on the lookout for late-season corn, soybean diseases |
| News created: 22. september 2007 08:46 |
9/12/2007, 1:02 PM CDT
Corn
Not only have the hot and dry conditions and hail affected corn yields in Minnesota this year, these conditions have also favored development of ear rots.
Reports of ear rots have been coming in from several different areas, and the quality of grain that comes off these affected fields may be reduced. Several different types of ear rots occur in Minnesota, and all are not equally important. Aspergillus ear rot and Fusarium ear rot may be of particular importance this year due to the hot and dry conditions in much of Minnesota.
Aspergillus ear rot, caused by the fungus Aspergillus flavis, could be an important problem in some areas this year. This disease is typically uncommon in Minnesota in years of more normal temperatures and moisture, but can become common under high temperatures and low soil moisture. Patches of green to yellow spores form on or between kernels. |
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