Apply a weed & feed product. Weed & feed products make the grass stronger and healthier, which helps it fight off weeds. Weed & feed products also contain an herbicide that kills broadleaf weeds. Choose ONE of the following.
Grubs can decimate a perfect lawn by destroying grass at the root - and since they live underground, you usually don't know you have them until the damage is done. Put down grub preventative fertilizer in early to mid-summer when it will do the most good. Do not apply fertilizer if grass is dormant due to intense heat or drought.
Immediately after applying the fertilizer, water the area with .5" - 1" of water.
Step 4: September 1 - October 15
Your lawn spends the fall recovering from the dry, hot summer, which is why the fall turf feed is the most important feed of the year. Apply a fertilizer that thickens the grass and strengthens the roots. This is an essential step in the fertilizing program.
If you choose to fertilize in the late fall, a slow-release starter is ideal. Slow-release starters build deeper, healthier roots for 45-60 days so that the lawn will be stronger and more lush in the spring. Starters are a good idea for newer lawns, recently overseeded lawns, and lawns with grub damage.