We have a few acres we had to clear of blackberries and many noxious weeds as well as normal weeds. Bberries need the rootballs ripped up as do plenty of the noxious weeds. For the normal weeds we’ve done the salt/dawn/vinegar mix as we try not using the nasty chemicals whenever possible (we use a well). Vinegar only has very temporary weed control effects. I’ve used it plenty as I bought a pallet of the strong stuff which is quite expensive, btw. I am toying with tossing just plain rock salt out on our gravel area to control the weeds there. I am trying to figure out what harm that might do otherwise before I do so.

I also wonder about the use of dishsoap. The multi-syllabic chemical ingredients it contains are plenty (not as bad as weed killer chems, I know), so is it better to use when you have to use so much more (and repetitively)? IDK. We settled on Bonide for now which is supposed to be an organic weed control product. It seems to work, but I won’t crow about it. Weeds are still very resilient!