Scotch thistle is commonly found in pastures, and also in orchards, lawns, waste areas and crops. As a vegetative rosette, it can tolerate mowing. However stem elongation ("bolting") occurs when the ...
Spot-spraying is another option for flowering plants, using herbicides such as aminopyralid (T-Max), 2,4-D/dicamba, clopyralid or triclopyr/picloram. Scotch thistle is the most common thistle species ...