What you are seeing is called Poa. Weather conditions this year created the perfect environment for both Poa trivialis and Poa annua. Some of our clients have experienced this common pest in the past, but this year has been extreme. Poa trivialis seeds or stolens can lie dormant in the soil for many years, germinating or emerging under favorable conditions, like wet seasons. Poa annua is a winter annual that germinates in late summer/early fall and often dies in the heat of the summer. There are treatments for both, but this year we are giving clients the option of spot treatments, re-seeding, or waiting it out. Poa annua will most definitely die off. If you have questions, please contact email@example.com and we will work with you on your specific situation.