Yes, that is the approximate fertilizing schedule we follow for our St. Augustine. We lightly feed monthly...like your Weakly Weekly idea for plants. Plus we aerate in the spring. We just had it done, in fact. I gave a dose of iron to the new sod to help it restart. I just planted it last August. If the grass is healthy there is no need for additional chemicals like Weed and Feed. Our lawn is fairly healthy and weeds are few.--- We have terrible soil-borne fungus here in the south. We begin using fungicides in September as the nights cool and the moisture gets trapped in the lawn with the hopes of halting it. It doesn't destroy our lawn. It just looks awful. Brown Patch is one of the names and it makes perfect brown circles in our yards. I have had little success with the products out there. A good chemical, Fungaway hat took care of it was taken off the market about 10 years ago is back. But so far it is hard to find. As soon as I find it, I am going to cure my lawn of fungus. --- Since mold is a fungus I might try using a fungicide to at least keep it from spreading. But I think Slime Mold is not a fungus. Sorry I can't help you.
