how can I kill wild mint growing in a pasture field

Question

We have an area in our pasture that is being taken over with wild mint—it was not planted there. It came by unknown means and it is increasing too fast so needs to be taken care of by some means.

Answer 1

Here is a couple of links for you.

https://www.gardeningknowhow.com/edible/herbs/mint/invasive-mint-how-to-kill-mint-plants.htm
http://ir.library.oregonstate.edu/xmlui/bitstream/handle/1957/23962/CLNO559.pdf?sequence=1