Why is the turf grass yellow? Wed, 05/01/2019 - 12:00am Lawn & Garden Let me introduce myself. My name is Beth McMahon and I’m the Horticulture Extension Agent for Gillespie County. One ...PLEASE LOG IN FOR PREMIUM CONTENT. Our website requires visitors to log in to view the best local news. Not yet a subscriber? Subscribe today! Read more about Why is the turf grass yellow?