Our Salem residential lawn was installed by a professional landscaper using JB Instant Lawn turf 4 years ago. It was a beautifully consistent dark green until I hired a lawn maintenance company to do my mowing. I think they may have brought in some kind of invasive grass on their equipment. Or it could have blown in from a neighbor's weedy yard. Small patches of very bright green grass appeared. The patches keep getting larger and larger and they are showing up all over. I read about poa grass and it doesn't look like photos of poa. However, it does go to seed fairly quickly and certainly before the JB turf shows signs of going to seed. Any ideas how to identify it and get rid of it?