How to deal with noxious weeds:
1. Herbicide: poision the plant (and the surrounding environment) and hope it doesn't become resistant to the poision (roundup is no longer effective vs many weeds)
2. Burn it: assuming you can burn the roots and not burn down anything else you don't want burned
3. Tillage: drive over it with a disc and hope that does the job; or pull it out by hand
4. Find an animal that likes to eat the plant and let them eat it (assuming you can control the animal: i.e. Japanese beetles)
My place is overrun with cypress spurge: somehow introduced from Europe and spread by sand/gravel operations especially with road building. Its toxic to cattle and is moving from Braeside outwards up highway ditches. I've noticed it west near Cobden, and now some is past the Mississippi river towards Pakenham. And there's a big patch at Cavanaugh's pit in Carleton Place. It looks harmless but we have 12 acres of pasture now out of commission. I hate to spray roundup (nothing has been sprayed here in 40 years) so tillage and spot burning (with a garden propane flame burner) on agenda next year.
It grows a foot tall, leaves like needles from a spruce tree, grows ahead of the grass in spring, little flowers start yellow and go reddish.

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Diligently follow the path of two swords as one. Percieve that which the eye cannot see. Seek the truth in all things. Do not engage in useless activity.
The Book of Five Rings, Miyamoto Musashi, Japan's greatest swordsmen