Producers need to look at herbicide labels for specific details and be attentive to grazing and plant-back restrictions.
After soil test results have been received, Johnson said they should also consider adding recommended amendments as soon as possible.
"We like to fertilize actively growing perennial plants with phosphorus and potassium before the growth cycle is done for the season, and that will come to an end soon," he said.
Applying limestone to increase soil pH is still possible this fall, and applying it now will give the soil time to adjust pH over the winter.
If pastures did well this year and there's still a lot of forage growth, Johnson recommended that farmers allow animals to graze to reduce the amount of forage present in the pasture.
"Four inches or less should be left in the pasture for 2013 if overseeding in late winter occurs," Johnson said. "We want seeds to get to the soil surface, not stuck in leftover forage."