Rejected feed corn spread on fields
Editor’s note: This article is from the archives of the MSU Crop Advisory Team
Alerts. Check the label of any pesticide referenced to ensure your use is
included.
Last
fall there were situations of new crop corn grain being rejected by
livestock. In some serious cases where the quality was not good enough
for feeding or marketing, the corn was land applied. The inoculums from
the fungi causing mycotoxin issues can provide a source for
re-infestation in 2010. The weather conditions will have the final say
in how much of a risk this will be. Several precautions may include
tillage of these fields (no-till will keep the inoculums on the surface)
and rotation out of corn and cereals.
Last season a number of fungi were identified on diseased corn ears by the MSU Diagnostic Services including Aspergillus spp., Penicillium spp. and Fusarium graminearum which also causes head scab in wheat. Although Fusarium graminearum
has also been reported to cause seed and seedling disease in soybean,
rotating into soybean with a seed treatment will be a better option than
corn or cereals. Be mindful of potential weed corn issues, particularly
if herbicide resistant corn varieties were land applied.
For more information, visit the Purdue University and Ohio State
University web sites, universities in states where the problem was a
larger issue last fall.
http://www.ag.purdue.edu/extension/cornmold/Pages/default.aspx
http://www.ag.ohio-state.edu/~news/story.php?id=5616