Well maybe I'm new at the Organic Lawn Care System....but out of the 3 main things, I'm using two steps and they definitely work. Not because I'm doing them, but the finish results speak for themselves.
1. Core Aeration
2. Organic Compost Spreading /with reseeding
I agree, You got it. That's great. When your at 99% already will you see a difference.
If your talking disease suppression or overall plant soil health quality compost tea has not been proven any more effective.
Compost can physically supress disease from spreading by simply smothering it.