Home brew to waste weed within drive channel?

I notice that my 20 plus foot theves...
I have other sprayed them with vinegar - seem to work!
What do you do next to your tree...

Can tub and wash up wet be used...
Vinagar, saline and Ammonia with rather dish soap. But I never had much lick next to those home brews.
Go to a farm store and procure a gallon of Round-up Concentrate. Only at a farm store. 1/2 cup to 1 Gal. of marine.
Not suppose to have a pass over. A gallon will last a long time.
I cant afford a meadow so I spray the intire yard and one gallon have lasted me for two years in a minute.
What gardening/lawn product would work best?
Answers:    Boiling water is another opinion. Gas is a little toxic. Round-up is cheating -- not a home brew. I'd try the vinegar if you're concerned something like being green. Bleach absolutely nukes plants as well.