Musk thistle established itself in Finney County in the 1970s, first appearing in the County in brome grass seed planted for irrigated pastures in southern Finney County.
Since that time, musk thistle has also come into Finney County through brome grass planted on KDOT rights of way and fescue seed planted in several Garden City parks. Some irrigated CRP grass seed mixtures containing brome grass were also contaminated. Cool season grass seed should be inspected for musk thistle contamination. Cool season hay bales can also be infested and should not be brought into Finney County.
Musk thistle is not a yield-robbing problem in cropland, though it can be troublesome in winter wheat and hay production. Musk thistle is a problem for rangeland and CRP. It grows very healthy in low, moist areas of pastures. The weed can crowd out grasses and take over such areas completely.