bpgreen - Im not sure what kind of grass I have but I know its not all the same type....some areas are much thicker & more dense that other parts of the lawn and its usually the thick/dense area that gets taller faster and thus alerts me that its time to mow. I purchased the home only four years ago and have never planted any grass seed myself (I bought the house from a very elderly lady that I doubt did any grass seed planting herself). I dont know how many sqft the bottle covered but I remember that it was a 32 oz bottle. I threw the bottle away after I had finished the application but I just did an internet search for a use & directions label and found something that said 6.4fl oz per 1000sqft. The area I sprayed measures about 20'x50' on one side of the walkway and maybe 30'x50' on the other side (looks like I may have applied twice as much as I should have, if the use & directions label I found online is the correct one). Any suggestions on what I can do to "save" the grass if it turns out I over-applied? texasweed - The grass is at least four year old, does that take it out of the "young" grass category? Also, Im not sure if this might help with a diagnosis but......up until this past week, Cincinnati has had a steady flow of rainfall over the past several weeks (at least 2-3 days a week) with temperatures around the mid to upper 60's. However, this past week there was ZERO rain and the temps got up into the low 80's.

Hello, thanks for your response. I think you are right. I googled some images of moss varieties and it lolls like it could be stonecrop sedum acre. I bought the house last summer and did not fertilize until early May with weed and feed. A couple of weeks later I dumped some Weed B Gone on it. It didn't look like it did much to be honest. So I started pulling it up. My guess is that the previous owners had this down at some point,, then put some grass down later. It is under a big tree so there is some shade. I have not watered but it is something to think about going forward. Michigan was very rainy last year so I never bothered. So assuming this is stonecrop, is there anything I should do to ensure this goes away and stays gone?

Looks like Ranunculus ficaria.

What has the temperature been like there in Atlanta lately? I'm going to go out on a limb here, and guess "pretty dang hot"! Lawns under heat stress, drought, or high temperature conditions should not have herbicides applied. Usually most herbicide labels mention 90° F, what we call "weeds" are usually VERY hardy compared with turfgrass, have deep taproots and/or waxy coatings on the leaves. Consequently while the weed plant defenses are at their best in tough growing conditions for turf, the grass plant may be damaged. When it's real hot and dry there isn't much of anything to be done for a lawn, at least cool season turfgrasses.