I recently cleared a patch of blackberries that was about 2,000 SF, maybe a bit more. First step was to weed whack it (solid metal 3 blade tool, not trimmer line), then I hit it with our field mower, effectively a mini brush hog. Left it alone for two weeks.

Two weeks later, any green growth got the scorched earth treatment, glocophosphate and mec-amine (a generic version of crossbow). Went back last week and what was growing? Bracken ferns. I hit those with GP, and they look like they are on their way out.


The area will be cleaned up a bit at the end of the year, and then probably replanted with our usual field grass after removing that one stump. Used about 3 oz of concentrate of each herbicide.