Help in identifying this type of weed
Hi: Good afternoon. I live in central NJ and was wondering if you can help me identify this type of weed that has been entering my lawn ( TTTF, KGB and Perennial Rye Mix ) for about the past 5 weeks. It seems to be coming in from a heavily bushy area with trees in the rear of the yard. My yard is 10,000 square feet and the weed is only entering from this one area. I have hit it with Tenacity twice over the past 4 weeks and it seems to have had some effect on it ( yellowing, etc ) but it has yet to die off. The weed was dark green before I applied tenacity to it. I have attached a few photos for your review. Thanks in advance ! Appreciate any input you can provide.