Daisies

I normally do what Monty does and sow grass seed in to modules which can then be used as patch fixes for lawns as they will already have a decent root system. I use them on bare patches or if I've taken out weeds, providing the ground isn't waterlogged or frozen

 

@Freddy You can treat them as members have stated with good advice but as long as your lawn mower as the spores off them on the blades they keep coming back...so it's a constant treater of the lawn to keep them at bay