I can remember my grandmother waging war on these. She said they would take over quickly and she was right. If you keep one now you'll have plenty next year.
When they run their cycle and die/dry up in winter in my area, the chickadees will be hanging all over them getting the seeds from the flower stalk. We tend to ignore them as long as they don't pop up in the middle of the yard.
Pull these regularly on sight. Best to get 'em before the first blooms show, a guide to spotting them. After pulling several I'll sometimes get a slight rash on a forearm that lasts half a day or so. Not always too clear-headed, I can't relate to any psychedelic or calmative effect. :confused2: I suggest lavender oil or camphor as more convenient meditative aids vs say burning or drinking a tea made from boiled leaves/stalks. ('A-oom' )
Grab 'em low and shake side to side under tension to loosen the spreading roots near ground level. This will allow the tap root to be pulled up with the rest. Mullein isn't as prolific or as difficult to control as yellow foxtail, but can be as annoying. One begets many if you don't jump in early when first spotted. 2-4-D and glypho work well on low plants that are mowed vs growing tall enough to flower. Use a surfactant and wet 'em good.
If you have one this year, expect to recall this thread in successive seasons. Apparently there are no animals that will have anything to do with them other than to help scatter seeds. You have been advised.
One good thing about them I've noticed it seems to attract Japanese Beetles. What's odd about it though is they don't seem to eat much of it. Maybe they are too high from the first bite to keep chewing on it?