If you haven’t already experienced it, you are on your way to a killing frost soon . This means careful management is needed for safely feeding warm season annual forages.

Extension educator Leanna Duppstadt warns that frost-damaged sorghum, sudangrass and relatives release prussic acid — essentially, cyanide. This naturally produced chemical can kill livestock at a very low dose.

Manage Warm-Season Annuals and Alfalfa After a Killing Frost

If you want to harvest alfalfa late in the year, you need to wait until after a killing frost. But what is a killing frost?

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