Probably not nimblewill. It has thinner stems than that, and can be killed with Tenacity.

I have a small patch of bermuda in my TTTF lawn, but I don't let it get as tall as your pic shows, so I can't really tell you what it would look like at that height. Bermuda has lots of stolons and rhizomes which can easily be found just under the soil surface. Tenacity won't kill it.

Is it growing as individual plants or as a spreading patch?

https://weedid.cals.vt.edu/

 

it is spreading as a patch so it is not tall - more horizontal. it's hard to see from pix since i mow twice a week and the blades never really get too long.
i've studied that weed vt.edu link forever but can't decide so i'm hoping someone here can help me identify

 

Here's another picture of an injured plant post fusillade and triclopyr. This is Bermuda right?

 

Looks like bermuda

 

Thanks I think I will have to agree with you! I just dug up two really long ones in another part of the yard

 

I'm also in nova. I have had this in both my houses, I planning to spray Triclopyr once the weather gets a little cooler

 

I'm also in nova. I have had this in both my houses, I planning to spray Triclopyr once the weather gets a little cooler

One issue with waiting is that you will only have 1 more application chance to kill Bermuda in its growing season. Once it goes dormant you will have to wait until Spring time before you have more chances to kill it. Also, applying Triclopyr any later may mean you can affect your overseeding time this fall if you are doing it.

 

Here's the progress of getting rid of Bermuda. I went from selective killing it to just nuke everything + 2 inches out into the good fescue. After 3 applications Fusillade + Triclopyr this is what the area looks like. We got rain last couple of weeks so the stolons look like they are standing up. There's no greenness when I dug a few out so this is like Zombie grass! Should I glysophate one more time or is that pointless since there isn't much surface area to hit?
any Green in the pix are new weeds that popped up post rain or new grass clippings.