Lol getting abused by the public daily.
We have to put signs out now and they're like red rags to a bull. We used to quietly get away with it but they see the sign and hunt you down for a tirade. Funny I was approached by an outraged citizen today whilst hand spraying, she wasn't bothered by the boom sprayer nearby putting out a much worse substance, just by my glypho.
Seriously though we're all pretty accountable and responsible. Everyone is trained and licensed. Accurate wind, temps and delta T is recorded. We also program the spraying of glyph with seasonal growth spurts.
We've tried some alternatives.
Pine oil can work in large and very expensive doses.
Pelargonic acid it just that, bloody acid! The PPE you need to mix it is crazy, we stopped after golfers complained about us getting around in full rubber gaunts, aprons, shields and respirators
Steam is a complete joke. Only contact kills, misses stolons and tubers. Is very time consuming. Theres two things weed seeds need to germinate, heat and moisture, regrowth soon follows. Then theres the carbon footprint of running an internal combustion boiler all day to run it.
The only other one we use is pre-emergents, generally more toxic than glyph but no one seems to care, because they're not in the media and the only nasty chem they know is glyph. Lol.
Anyway thats where I'm at with it, will keep using it in a professional manner and deal with the numpties as they come.