Keep your lawn healthy all year round.
Always weed by hand where you can. Mowing helps to contain weeds and stop them from going to seed. If you have a larger area and you can't control without spray, choose something organic if possible and spot spray rather than spraying your whole lawn.
There are some great natural fertilisers available if you need them. Synthetic fertilisers offer short term benefits but are not good long term for your lawn or soil.
Follow these tips and leave the Weed and Feed on the shelf.