Late Blight is a plant disease caused by the pathogen Phytophthora infestans. It primarily affects potatoes and tomatoes, leading to dark, water-soaked spots on leaves and stems. If not controlled, it can cause rapid plant decay and significant crop loss. The disease thrives in cool, moist conditions, making it a common problem in humid climates. Farmers can manage Late Blight through resistant plant varieties, proper spacing for air circulation, and fungicide applications. Early detection and intervention are crucial to prevent widespread damage to affected crops.