As we approach the end of summer and start scraping the bottom of the silo or pit to feed our dairy herd before the 2011 harvest season begins, we may want to consider the quality of that silage. While last year’s harvest appeared to be cleaner than the previous year’s crop, some producers are finding that after it was all packed and stored away, it wasn’t as safe as it seemed. As the temperature has risen, so have the levels of mold and yeast in our stored feed.