How To Treat This Weed?

Question

Hi, I have a new lawn sowed. There is some sort of weed which is absolutely everywhere. Any ideas what the weed is and how I would treat it? Thanks.

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Answer 1

It appears to be a Sea radish or Wild Mustard, or something in that family.

Getting rid of it on a wide scale will, ultimately, require chemical means.

This article will help:

https://www.gardeningknowhow.com/edible/herbs/wild-mustard/wild-mustard-control-in-gardens.htm