Type and Class of
All classes of sheep, goats, and cattle.
Prevent seed production, reduce plant size and
Growth Stage for
Graze bull thistle heavily during the rosette to
bolting stage. Repeated grazing at approximately
two-week intervals will be necessary to prevent
flowering and seed production. May need to graze
only once in a season if grazing occurs in the
early flowering stage. A minimum of three
successive years of grazing is needed to reduce
Sheep and goats will readily graze bull thistle.
Cattle will not graze bull thistle beyond the
late bud stage. Grazing works best when combined
with a fall herbicide treatment. Grazing reduces
plant size, density, and reproductive