What a difference 2 weeks makes; Nebraska weather never disappoints. The 4-inch soil temperatures were in the mid-fifties, which is the typical trigger to apply PREs for crabgrass. In fact, we were noticing some crabgrass germination in areas near sidewalks and driveways around Lincoln. Since then, a major snowstorm and dramatic temperature decline have reduced soil temperatures back into the lower forties across much of the states. Any annual grassy weeds that did germinate were likely killed by the hard … Continue reading When to apply spring PREs and nitrogen