If you want to maintain a healthy lawn in Illinois, you need to know how to effectively identify any lawn diseases that may occur in your grass. Our guide covers the 8 most dangerous lawn disease in Illinois including, Brown Patch, Dollar Spot, Lawn Rust, Snow Mold and more. Every disease has unique characteristics and each will thrive under certain conditions. Therefore, it is crucial to understand what disease you may be dealing with and how to effectively treat it. Recognizing signs of disease in your lawn can help you properly treat and protect your grass and ensure an overall healthy and vibrant long all season.