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Old 04-14-2012, 12:29 AM
GaryCinChicago GaryCinChicago is offline
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Join Date: Dec 2009
Location: Chicago, IL.
Posts: 14
Pendimethalin, dithiopyr and prodimine all have different residuals, with prodimine being the longest.

It all depends on what your are targeting. Crabgrass germintaes once soil temperatures are rather warm, later in spring, while poa annua germintes when soil temps are cooler betwen 70 and 55 degrees.

The OP mentions broadleafs ... for that there is isoxaben as a pre emergent.
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