We have about 5 acres that is being taken over by mint. How can we get rid of it?
Douglas County Oregon small farms
Most likely what you are dealing with is pennyroyal, a perennial weed in the mint family. It grows it wet areas and livestock will generally avoid eating it, one of the reason it may be taking over your acreage. This publication from the book Weed Control in Natural Areas in the Western United States outlines different control methods for pennyroyal: https://wric.ucdavis.edu/information/natural%20areas/wr_M/Mentha.pdf