Leaf blight is a plant disease characterized by the rapid death of leaf tissue, often leading to brown or black spots on the leaves. This condition can affect various plants, including crops like corn and potatoes, and is typically caused by fungal or bacterial pathogens. Environmental factors such as high humidity and poor air circulation can exacerbate the spread of leaf blight. Management of leaf blight involves practices like crop rotation, proper spacing of plants, and the use of resistant varieties. Fungicides may also be applied to control the disease, but prevention is often the most effective strategy to protect plants from this damaging condition.