Leaf spot is a common plant disease characterized by the appearance of dark, round, or irregular spots on the leaves. These spots can vary in color, including brown, black, or yellow, and may lead to leaf yellowing and premature drop. Leaf spot is often caused by fungi, bacteria, or environmental factors, and it can affect a wide range of plants, including flowers, vegetables, and trees. To manage leaf spot, gardeners can practice good cultural techniques, such as proper spacing for air circulation and avoiding overhead watering. Additionally, removing infected leaves and applying fungicides or bactericides can help control the spread of the disease. Regular monitoring of plants is essential for early detection and effective management of leaf spot.