What weeds you got and what stage is the grass ?,, Hurler is good on Docks and Chickweed , early mowing or grazing will take a lot outWhat can I spray on newly sown grass to keep weed under control.?
3 leaf stage for Fluroxypyr, Hurler /Minstrel etc , very good on chickweedI am told, but have never tried it, that Fluroxypyr products can be fairly safely used relatively soon, three months I believe, after sowing on amenity grass to control weeds the mower does not reach such as chickweed. Otherwise the mower is often the best remedy for turf weeds. Bets check with a knowledgeable supplier like Progreen