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Pre emergent crabgrass prevention #925821

Asked March 11, 2026, 4:39 AM EDT

When should i apply pre emergent crabgrass preventer on my lawn?

Wayne County Michigan

Expert Response

https://gddtracker.msu.edu/?model=7&offset=0

Enter your zipcode at the website above for the most local forecast of when is the best time to apply a crabgrass pre-emergent. Due to the colder weather forecasted, It's likely at least 1 - 2 weeks away until the soonest time to treat.

David Lowenstein Replied March 12, 2026, 9:21 AM EDT

Our mission is to help Cooperative Extension generate a more visible, measurable, local act. We achieve this through our nationally funded programs made possible by member dollars and cooperative agreements with federal agencies, and through partnering on state, regional, and national initiatives with Cooperative Extension and the Extension Committee on Organization and Policy (ECOP). We serve all Land Grant Universities, regardless of membership status.

This work is supported in part by New Technologies for Ag Extension grant no. 2020-41595-30123 from the USDA National Institute of Food and Agriculture. Any opinions, findings, conclusions, or recommendations expressed in this publication are those of the author(s) and do not necessarily reflect the view of the U.S. Department of Agriculture.

Pre emergent crabgrass prevention #925821

Expert Response

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