If you did not apply a pre-emergent herbicide in late March or early April, the crabgrass seeds sitting in your soil across Circleville, Columbus, Lancaster, and Chillicothe are about to start germinating this week. Once they do, pre-emergent does nothing. But the season is not lost. There is a narrow rescue window right now, and a handful of post-emergent tools that still work if you move fast. Here is what to do this week. The soil temperature reality Crabgrass germinates w