Cultural – Competitive vegetation helps reduce open spaces for invasion
Mechanical – Mowing can stop seed production in short term, but plants can regrow; digging cutting and cultivation are effective; monitor for new growth season long; seed bank will remain for years
Chemical – Several effective at label rates; best timing is in early spring when plants are in rosette stage and again in fall when more rosettes germinate
a yard stick on a Scotch thistle rosette
Where found- Scattered small infestations, particularly in old barnyards as well as some sites covering several acres over pasture/range ground in the northern half of the county.
