Crossbow is the premium treatment, you can get by with agricultural brush killer that has much the same ingredient list. 2,4-D ester formulations are much more powerful than 2,4-D amine types (home owner types) that are much less likely to drift. It’s hell on grapes roses and tomatoes among other things.

Get it done before people’s gardens get going good. The vapors will drift for a couple days under perfect conditions. As far as using fuel oil or kerosene as a carrier... it’ll wash off easily and kill grass it contacts. Be careful how much you just go out and spray hell out of stuff, it’s HOT.