Crabgrass timing Ionia City - Ask Extension
Just wondering if you know the ground temperature for crabgrass yard treatment. Believe they say once it hits 50 degrees ground temperature. In the p...
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Crabgrass timing Ionia City #926734
Asked March 25, 2026, 1:04 PM EDT
Just wondering if you know the ground temperature for crabgrass yard treatment. Believe they say once it hits 50 degrees ground temperature. In the past I've not been real good at the timing of that. When should I put the crabgrass treatment down and the temperature of the ground I guess thank you for your help
Ionia County Michigan
Expert Response
Thank you for your question. Crabgrass pre-emergent control is best determined by using GDD Tracker (GDD Tracker) which tracks the cumulative heat exposure that warms soil and entices buds to open. More info in the following links:
GDD Tracking-Spring Crabgrass Prevention-MSU
Common Questions-Crabgrass & Pre-Emergent-Purdue
Crabgrass Control-UMn
Today GDD Tracker shows we are right on the beginning of the optimum time to apply pre-emergent. You should bookmark the website for future use and can even sign up for alerts.
I hope this is helpful.
GDD Tracking-Spring Crabgrass Prevention-MSU
Common Questions-Crabgrass & Pre-Emergent-Purdue
Crabgrass Control-UMn
Today GDD Tracker shows we are right on the beginning of the optimum time to apply pre-emergent. You should bookmark the website for future use and can even sign up for alerts.
I hope this is helpful.
