Q&A: What if it rains on the silos during the harvest?

Rain during harvest and filling can be exasperating, especially after you’ve probably spent time carefully determining your forage’s moisture content.

If significant rainfall occurs during harvesting, the best option is to roll well the forage that is already in the bunker and quickly sheet it loosely. It should be weighed down just enough to make sure the cover doesn’t blow off or get damaged. The bunker should then be filled as quickly as possible after the rain has stopped, assuming that the forage is not too wet to ensile. If the forage is very wet, then it should be spread wide and allowed to re-wilt.  The best is to ensile rained-on forage separately from forages without rain damage.

Adding a challenge-specific inoculant, can help inhibit undesirable microbes during feedout and maintain proper silage quality, retaining important DM and nutrients.



Lallemand Animal Nutrition does not purport, in this guide or in any other publication, to specify minimum safety or legal standards or to address all of the compliance requirements, risks, or safety problems associated with working on or around farms. This guide is intended to serve only as a beginning point for information and should not be construed as containing all the necessary compliance, safety, or warning information, nor should it be construed as representing the policy of Lallemand Animal Nutrition. No warranty, guarantee, or representation is made by Lallemand Animal Nutrition as to the accuracy or sufficiency of the information and guidelines contained herein, and Lallemand Animal Nutrition assumes no liability or responsibility in connection therewith. It is the responsibility of the users of this guide to consult and comply with pertinent local, state, and federal laws, regulations, and safety standards.

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