Pulling weeds by hand is the safest and most natural remedy for ridding your yard of weeds. Pull all of the weeds up and less will come back each time.
Watering your grass will prevent it from drying and turning yellow. However, if your lawn is receiving water regularly and is still yellow, there may be insects damaging the grass roots.
what a lot of people do if they don't want to spend big money of weed killers is just dig the weeds up make sure the roots come with it or it will grow again