Q.Best Herbicide for Hairy Bittercress in Fescue Lawn
I suddenly have a lawn full of hairy bittercress. What is the best postemergent herbicide to use on a fescue lawn without killing the desirable grass? I was going to hand-pull, but it would probably take all day. Plus, I read one article that said it had a taproot and would just grow right back unless you got it all. Please advise. I would like to do something this weekend. Thanks for any help.

Certified GKH Gardening Expert
This article should help: https://www.gardeningknowhow.com/plant-problems/weeds/hairy-bittercress-control.htm