control of Knapweed
I've been asked by a friend to help find alternatives for the control
of a reasonable small area of knapweed (not acres of it). The local
advice has all been to use 2,4,D or Roundup in a small pasture that
is grazed by llamas. They were told that if the animals aren't
pregnant, they wouldn't have to be pulled off the pasture during or
after spraying. They are concerned about that, but also recognize
it's a fast spreading and difficult to contain weed in their area.
Any advice for them?
Thanks a lot!