Vintage arena overgrown with non-woody weeds, mostly grasses but a significant percentage of broadleaf weeds mixed in. Mowed close a couple of weeks ago to knock down the vegetation. A few inches of new growth since then.
My plan to revive this arena is to apply an herbicide to kill everything, then burn/rake off as much vegetation debris as possible before shallow-tilling in the remainder.
What herbicide would work best to kill everything? I have the RM43 Extended Control which is sold as ground clearing (43% glyphosate + imazapyr). Is there something better?
Location is the PNW.