Postemergence Crabgrass Control – Turfgrass Science at Purdue University

Postemergence Crabgrass Control

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:

Aaron Patton, Turfgrass Extension Specialist
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Disclaimer: Reference to products is not intended to be an endorsement to the exclusion of others which may have similar uses. Any person using products listed in these articles assumes full responsibility for their use in accordance with current directions of the manufacturer.
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