<https://forum.michiganinvasives.org/index.php?/topic/2216-bull-thistle-management/#comment-2493>
<http://schema.org/text>
"Does anyone have experience or advice in managing/treating for bull thistle that they could share?\n \n"
<https://forum.michiganinvasives.org/index.php?/topic/2216-bull-thistle-management/&tab=comments>