Syngenta is just highly risk averse. They do not want to hear about white areas in lawns or entire lawns turning white for 2 weeks. They also do not like to hear about holes burnt into lawns or swirls and streaks from a Chemlawn gun. I do not do spot applications. I will do applications consisting of 1 sq ft or more with a single fan tip applying a set amount to that square if there is just a patch of weeds surrounded by acres of perfect grass. Although it is seldom the case that there are just a few weeds surrounded by perfect grass. Normally, those areas get to look like a missile test site when they should be broadcast sprayed with the correct material at the correct rate using proper equipment.
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