Is October too late to spray for weeds?

In Oklahoma City, October is generally not too late to spray many cool-season broadleaf weeds, as long as temperatures are still mild and the weeds are actively growing. Fall is actually one of the best times to treat dandelions, clover, and other perennial weeds because they are moving energy down to their roots. When you apply a quality post-emergent herbicide during this window, more of the product is carried into the root system, giving longer-lasting control. However, results drop off once the first hard freezes arrive or when daytime highs stay too low. A local lawn spraying service can time fall treatments around Oklahoma’s specific weather patterns.