Hi there! We have a question about the removal of tansy from our pasture. We have a 2 acre pasture where we keep our one horse. This summer it just got overtaken with tansy & we were unable to remove it before now due to a family medical issue. So we are now battling fully grown tansy and trying to figure out the best way to get rid of it. We have already hand pulled a huge trailer load, but much of this tansy is too big or too woody to pull up or the ground is too hard. Should we continue with hand removal (using a weed wacker to cut down at the base and remove the debris by hand) or is it safe to mow with a tractor & leave the debris on the ground to decompose? We don’t want to make our horse sick & we don’t want to hinder the growth of grass that our horse could eat. I’m sending a few pictures for reference. Some of the plants are as tall as my shoulders (I’m 5’4”) and it’s thick! Any advice or help is greatly appreciated! Thank you!
Linn County Oregon