Fire Blight is a bacterial disease that primarily affects apple and pear trees. It is caused by the bacterium Erwinia amylovora, which infects blossoms, shoots, and branches, leading to wilting and blackening of the affected areas. The disease can spread rapidly, especially in warm, wet conditions. Symptoms of Fire Blight include dark, water-soaked lesions on flowers and leaves, which may eventually turn brown or black. In severe cases, entire branches can die back, resembling fire damage. Effective management includes pruning infected areas and applying appropriate treatments during the growing season.