Horsetail/witches fingers taking over grass!

Hi, first time post and looking for some help! We had new turf laid last October and the last few months have noticed quite a few weeds growing up. We would expect this given the state of the garden before but we now have horsetails/witches fingers (whatever you want to call them) taking over the lawn 😫 When I first noticed them a few months back I pulled them up as I know they are deep rooted, and was going to keep doing that until they died back but I think that was a mistake! As they're now growing in bunches and are barely indistinguishable from the grass when pulling up! Can anyone recommend a grass safe weed killer to spray directly on to them, or would I be best to just ignore them and mow the grass as normal and hope they die back? Any help would be appreciated!! Picture attached for reference 😊