How does rust-affected grass appear from a distance?

When grass is affected by rust, it typically exhibits a yellowish or reddish-brown coloration. The rust disease, caused by certain fungi, leads to the formation of orange or rusty-colored pustules on the grass blades, which can affect the overall appearance of the turf. From a distance, this discoloration becomes noticeable as the affected areas stand out against healthier green grass.

While other options may reflect different states of grass health, they do not accurately represent the visual symptoms of rust. Bright green grass indicates health and vitality, which is not characteristic of rust-infected grass. Healthy and lush appears vibrant and thriving, devoid of any signs of disease. Pale and lifeless can suggest a different issue, such as drought stress or nutritional deficiency. Therefore, the most fitting description of rust-affected grass from a distance is the yellowish or reddish-brown hue.