A type of lawn disease that causes reddish or pink threads to appear throughout a lawn. This disease is typically caused by a fungus that grows on an infected blade of grass. The threads can actually grow an inch beyond the height of a blade, and start off as a creamy, bleached color. Not all blades will be infected, but once a whole patch is infected, the disease can spread to form other patches, and the infected blades will most likely die off. Proper care and lawn treatment can prevent red thread disease from spreading further.