Crabgrass is top weed in Pennsylvania, so tackle it early
4/19/10
Crabgrass is the No. 1 weed problem in Pennsylvania lawns and can turn your picture-perfect turf into a real mess by late summer. But crabgrass can be controlled if you choose the right herbicide and apply it at the correct time of year, according to a turfgrass specialist in Penn State's College of Agricultural Sciences.