Weed killer recommendations

[MarkP]

Once on a fishing trip to south point years ago we picked up some 6" dia logs of what I am pretty sure was christmasberry where it had been buldozed down alongside the road. We got 3 logs of irregular lengths as we had no saw. We piled it as best we could with whatever kindling we could scrounge. The kindling flared up and burned away, leaving the logs smoldering. We applied lighter fluid regularly over the next few hours and sometimes it seemed like the wood was burning on its own but it always returned to a smoldering state so around midnight we gave up. Next morning to our surprise the logs had continued to smolder like giant cigars, the whole end of each log was red coals while the remainder was cold. We assumed that they would go out soon but by the end of the day each log was completely consumed and reduced to ash.

Wouldn't burn, but also wouldn't go out. The not going out part seems like a nightmare for firefighters putting out a brush fire.