Good point. A set of effective broadcast applications means I will not need to apply more for the rest of the year. No need to even spot spray. My impression of lawns that are spot sprayed is that the weeds are never gone. I will apply to less than the total area if that is what is going to work. It is not exactly a spot spray because it is an application over a patch of weeds and several feet around that patch.
They who can give up essential liberty to obtain a little temporary safety, deserve neither liberty nor safety.
Benjamin Franklin 1775
Sell not virtue to purchase wealth, nor Liberty to purchase power.
Benjamin Franklin Poor Richard's Almanac1738