Answer: Weed and feed is usually applied quite early in the year because that is when it is most effective against weeds. Once they have put on some size they are less affected by it so it might be a waste of time and money. I would suggest you read the product label and consult the manufacturer for specific advice about using their particular product. I would also suggest you work with your local county extension to develop a lawn maintenance and improvement program suited to your soil, the specific growing conditions in your yard, and your local weather. Good luck with your lawn!
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