The answer to 'why is my lawn disease' is that there are several common causes of lawn disease, including fungal infections, pest infestations, and environmental factors. Symptoms may include discolored, wilting, or patchy grass, as well as the presence of mushrooms or other fungal growth.
Some common lawn diseases include brown patch, dollar spot, and powdery mildew. These can be caused by factors like excessive moisture, poor drainage, or improper mowing and watering practices. Addressing the underlying cause is key to resolving the issue, which may involve adjusting your lawn care routine, applying fungicides, or aerating and overseeding the affected areas.