Going back to the beginning of this thread, don’t underestimate the nutritional value of those “weeds”. Couple of years ago I collected forage samples of soybeans, ragweed and vervain. The vervain is non-native but my deer hammer it and it’s naturalized so I don’t bother trying to kill it.

All three samples were submitted to the lab at Auburn for analysis. All were above 20% protein and had similar relative feed value numbers. Can’t recall the actual numbers but the soybeans didn’t have the highest protein levels. The soybeans did produce more biomass per acre, but at a much higher cost per acre. I’d guess $250 or more per acre figuring seed, fertilizer, herbicide and tractor time versus $0 for the weeds. Oh, and I had to put up a dual layer electric fence to get the beans established. That’s more money and time spent although I’m using the same fence in a single layer arrangement to grow chufa.


"Cull" is just another four letter word...