consider using a propane flame-weeder for spot treatment of weeds among the concrete/asphalt  

And if you’d like to email me directly so it’s not out in the world that’s fine too, just use my email I use to login. Thanks again!  

I am not going to use it for the fields. It’s for my neighbors driveway, I caught him spraying IN THE WIND! Roundup and it’s about 20ft away from my 8ft tall tomato rows. I had to go talk to him and told him I’d take care of the driveway and use an organic herbicide. So it’s only going to be used on the driveway, and very minimally.  

I know how to make it, but I don't recommend it. It makes the soil very bad. Thank you.