Many winter annuals began germination about 6 weeks ago in this area. Consider adding Simazine to help control poa annua if you are spaying warm season turf.
You're probably confusing the newer Aquacap formulation with the older Pre-M 3.3 EC.
Like Ted Putnam said, Aquacap is definitely lower in odor; and any yellow-orange over spray is much more readily washed off as compared to the older formulation of pendimethilin because the A.I. in Pendulum Aquacap is micro-encapsulated.
This
also means the A.I will release more gradually, too.
That's a big bonus here in Ohio... when we (usually) have March-April monsoon season!
I use it most of my landscape maintenance operations....along with Casoron 2G for (spot) Canadian thistle prevention.
I've found no better combination.