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Plant Pathology

Integrated Crop Management News

2009

Medicine and Health Sciences

Articles 1 - 4 of 4

Full-Text Articles in Life Sciences

Hail Damage – Grain Quality Survey, Bill Arndorfer, Alison E. Robertson, Gary P. Munkvold, Charles R. Hurburgh, Steve Ensley Sep 2009

Hail Damage – Grain Quality Survey, Bill Arndorfer, Alison E. Robertson, Gary P. Munkvold, Charles R. Hurburgh, Steve Ensley

Integrated Crop Management News

There were two major hail events this summer during grain fill that resulted in significant corn crop damage in the path of the storm. The damage occurred over several thousand acres with some fields being a total loss and other fields having varying degrees of damage. This resulted in several crop hail damage meetings across the state to help farmers make informed harvest decisions. A common question from farmers and grain merchandisers dealt with grain quality issues. Specifically, what impact will the hail damage have on grain quality, ear rot severity and mycotoxin contamination in my corn crop?


Risk Of Mycotoxins Associated With Hail Damaged Corn, Alison E. Robertson, Gary P. Munkvold Aug 2009

Risk Of Mycotoxins Associated With Hail Damaged Corn, Alison E. Robertson, Gary P. Munkvold

Integrated Crop Management News

Hail storms that occurred recently across the state have caused considerable damage to corn crops that will likely result in reduced yields. Bruises on stalks and ear husks may allow pathogen entrance that could result in stalk and ear rots, and consequently stalk and grain quality issues. In particular, there may be increased risk of mycotoxin contamination on grain.


More On Soybean White Mold This Year, Xiao-Bing Yang, Shrishail S. Navi Aug 2009

More On Soybean White Mold This Year, Xiao-Bing Yang, Shrishail S. Navi

Integrated Crop Management News

Soybean white mold has been a production problem for soybean producers since early 1990s. White mold outbreaks often occur in even years due to crop rotations, with rare severe occurrences in odd years. Iowa’s cool, wet summer has increased the white mold risk for some growers in eastern Iowa – even though it is an odd year. Extension field agronomist Virgil Schmitt first reported the occurrence of white mold in east central Iowa and Jim Fawcett, northeast Iowa field agronomist, has received a report of severe white mold in a 60-acre field.


Managing White Mold At This Stage Of Development, Virgil L. Schmitt, Daren S. Mueller Aug 2009

Managing White Mold At This Stage Of Development, Virgil L. Schmitt, Daren S. Mueller

Integrated Crop Management News

White mold has become evident in soybeans during the last two weeks, especially in eastern Iowa. Although infection occurred shortly after the beginning of flowering in late June and early July, the characteristic white myecial growth on infected plants has only become apparent the past two weeks. Really the only good news about this disease is that it does not have too much of a secondary disease cycle. In other words the disease itself is no longer spreading or is spreading one plant at a time.