Hi Michael, 

Thanks for reaching out! This article has great tips for crabgrass control (both cultural control, such as keeping a healthy and dense lawn, and herbicide control): https://extension.umn.edu/weeds/crabgrass

This link has some nice information on timing if you are interested in applying a pre-emergent herbicide: https://turf.umn.edu/news/spring-preemergent-applications-crabgrass It references this map (https://gddtracker.msu.edu/) on which you can enter your zip code into using the "Crabgrass PRE" option on the right side. When your zip code is in the dark green band is the optimum time to apply. It looks like you might still be in the "Early" band. Here's more information about the categories: https://purdueturftips.blogspot.com/2013/04/when-should-i-apply-my-preemergence.html

When applying herbicides, be sure to always follow the label directions attached to the herbicide container you are using. Internet labels may not match the label on the container you are using. Remember, the label is the law.

I hope this helps!