The grass grows greener because the soil is fed with well-aged organic matter that enhances soil health. Here’s What Top Dressing Does for Your Lawn: It needs less water because the top dressing retains soil moisture, reduces surface evaporation and keeps the roots cool in the heat of summer. This pest control contains a live, soil-borne organism that is effective against a variety of beetle grubs, including June beetles and chafers. EKO Lawn Top Dressing is a great medium for improving established lawns and revitalizing “pet spots” and compacted areas. Amount to Use When Top Dressing a Lawn. EKO Lawn Top Dressing is a great medium for covering newly seeded lawns. Suggested Uses For EKO Lawn Top Dressing New Lawns. The grass grows greener because the soil is fed with well-aged organic matter that enhances soil health. Answer your lawn, and control the culprit grubs with Scotts® Grub B Gon® Grub Killer. EKO Lawn Top Dressing will improve the color, thickness and overall health of your turf. Some extremely fertile, fast growing grass areas need a thicker layer of top dressing and require top dressing more often. Established Lawns. Here’s What Top Dressing Does for your Lawn: It needs less water because the top dressing retains soil moisture, reduces surface evaporation and keeps the roots cool in the heat of summer. When ordering top dressing, first determine the surface area and multiply by the depth of top dressing desired (generally, 1/8 to ¼ inch).