As crabgrass grows larger and larger this spring into summer, you’ll need to know just how big it is before selecting the right product for postemergence control. Read my recent article to turf professionals at Turf Republic: Just How Big is Your Crabgrass?
For homeowners, look for products that contain quinclorac such as the example below and follow the label instructions for spot treating your crabgrass.
More information on crabgrass control in home lawns can be found at: https://mdc.itap.purdue.edu/item.asp?item_number=AY-10-W
Aaron Patton, Turfgrass Extension Specialist
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