Mixed Grass, Foxtail and Horse Nettle Reality Check

I've got a field of Timothy mixed grass. Walking it today, there are some patches of foxtail and a few pieces of horse nettle.

At what point do you disqualify your hay for horse consumption due to the presence of foxtail and horse nettle? How much of it is to much?

There is some decent grass in is this field, along with some stemmy purple top coming up. It is otherwise weed free. I hate to just bush hog it down. Maybe cow hay? Goats? Can they tolerate that stuff?

What's your limit on baling squares where there is potential for foxtail and a bit of horse nettle? If anyone has a pic they could post of a field "over-run" with foxtail, I'd like to see it for reference.

Thanks!
Bill

PS - this post is on multiple forums for a broad audience - thx!

Mixed Grass, Foxtail and Horse Nettle Reality Check