There have been reports of localized areas of winterkill and winter injury to forage and winter cereal grain crops this past winter in Iowa. The reports indicate damage on sites across the state, but the most extensive areas are in northeast Iowa. There are reports of damage to alfalfa, orchardgrass, perennial ryegrass, winter wheat and winter triticale.
Iowa State University
Barnhart, Stephen K., "Avoid Alfalfa Winter Injury – Next Time" (2009). Integrated Crop Management News. 667.
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