In addition to wet fields and localized flooding, this winter’s record snow cover is likely to contribute to abundant winter annual weed infestations in no-till fields. In most years, winter annual infestations suffer significant mortality due to cold temperatures and freeze/thaw cycles, but the snow provided a blanket of protection. Thus, winter annual infestations will likely be more abundant and vigorous than in typical years.
Iowa State University
Hartzler, Robert G., "It’s Time to Scout for Winter Annuals" (2010). Integrated Crop Management News. 473.
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