Panther Captan 50% WP is a broad spectrum fungicide belonging to the phthalimide group. It has protective and curative action against a wide variety of fungal infections in crops. It works by inhibiting fungus respiration and energy production. Panther is effective against diseases like brown rot, downy mildew, early blight and late blight in several crops including apple, cherry, grapes, potato and tomato. The document then provides information about each of these crops and the diseases Panther helps control for each one.