...And that my friends is why we add simazine to the mix. It broadens the spectrum of weeds controlled, both post emergently and pre emergently. While its pre emergent qualities don't last long, they last long enough for the turf to get up and growing. If you are fighting tons of broadleaf weeds by mid growing season, then your fertilization program is lacking.
Prodiamine lists a few broadleaf weeds on the label as being controlled but its list isn't nearly as long as say Pendimethalin.
Greendoctor, I know you are prohibited from using simazine but many states on the mainland have it registered for use. I'll bet its legal in Texas and is safe to use in warm season turf of all varieties
"The Poor Fish" circa 1930's: The Poor Fish wouldn't have been caught if he'd known enough to keep his fool mouth shut.