Hello Chris,

While grass identification is difficult from photos alone, I am fairly confident that this is a clumping tall fescue. For some people, fescues are a desirable lawn grass. Unfortunately for you, they are not. Any herbicide that will kill the fescue will kill your desirable grass as well.

You have two basic options for removing the undesired grass – Physical removal (dig it out) or chemical removal (apply a herbicide to kill it). Once the grass is removed, you will need to spot-seed or place sod in the area to fill in the bare spots. If you seed, when you choose a seed mixture to reseed, be careful to choose a seed product that has predominantly bluegrass and perennial rye cultivars so you don’t find yourself in the same situation again. If you irrigate regularly, you can reseed or sod now, but if you do not irrigate regularly, you should consider waiting until late summer/early fall before seeding or sodding. https://www.canr.msu.edu/news/six_steps_to_fall_turfgrass_establishment

If you choose to sod instead of seeding, you can find sod at your “big box” home improvement store. Make sure you call ahead and find out what day they receive sod shipments, because you will want to buy it as fresh as possible.

Your option for chemical control is a non-selective herbicide (such as glyphosate) that will kill the undesirable grass and desirable grass as well. In this case, you will want to completely spray the undesirable grass and limit overspray on the desirable grass.

Hope this helps.