grass patching mold?

grass patching mold?

Hi; I'm new to gardening -- I just cleared out a flower bed full of weeds and morning glory, and got rid of a massive amount of dandelions in the front yard of my new apartment. Clearing out the dandelions left patches of open dirt amongst the grass, so I purchased a lawn patch kit with grass seed and fertilizer. I've been keeping the patches watered, and here in Seattle, we've had really warm sunny weather. Today I noticed that in one of the patches, there seems to be mold growing -- just a layer of soft fuzz, gray-green. I know that the fertilizer in the grass patch kit had a greenish tinge -- but this doesn't seem normal. I'm tempted to dig out the mold and the top layer of soil -- but I don't know whether what I'm seeing is actually part of the grass growing process. I'll try to post a picture later this morning, and I'm terribly sorry to post such a boring question, but does anyone else have any experience with this? Thanks in advance...
Fox Red Curly Sedge

Fox Red Curly Sedge

Bug ID

Bug ID

New edition to my “plant family”! hehe.

New edition to my “plant family”! hehe.

Lamps and Stuff

Lamps and Stuff

Flower ID help

Flower ID help

garden

garden