A North Korean nuke would kill it....
That's marestail, and it depends on the extent of herbicide resistance it has built up in your neck of the woods. It is resistant to gly in most areas of the country where no till farming is being used extensively (what doesn't kill you makes you stronger).
I've killed it with Crossbow in my area, and that would likely work for you if you hit it when its young.
Here is something else. It's an annual and has to come back from seed. Let it go until a couple of weeks before the seed become viable and mow it. It can't come back in time to make more seed. However, if you mow it too early, it will adapt and make seed on a low stalk.
Good luck....