Looks like it may be Quackgrass. Unfortunately, there are no herbicides to kill this kind of grass like there are readily available for crab grass. You have a few different options to potentially get rid of this grass. One would be to use round up and just accept that ALL of the grass will die in that area you apply it. Another option would be to dig at least 12 inches deep and remove all roots. Apply mulch before recovering with new soil. This will prevent any more from popping up. Another option is to spot spray or spot sponge. Get a big sponge and spray Round Up on it and sponge those areas. This method has proven to work moderately OK. Hope this Helps!
is here to help you with all your irrigation questions and needs!