What color do St. Augustine leaves turn when affected by brown patch before dying?

When St. Augustine grass is affected by brown patch, the leaves initially exhibit a yellowing effect. This yellowing occurs due to the effects of the fungal disease, which disrupts the normal functioning of the grass. As the disease progresses, the yellow leaves will continue to deteriorate, leading to browning and eventual death. The yellowing is a significant indicator of the presence of the brown patch disease, making it an essential color to recognize for identification and proper management of the issue in turf care.

Understanding this progression—from yellow to brown—helps in diagnosing and treating lawn diseases effectively. Proper identification is crucial for timely intervention, which can prevent further damage to the grass. Therefore, recognizing the yellowing of leaves as an early sign of brown patch is vital for turfgrass management.