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Chocolate saves world l Chocolate Shortage .
Chocolate is one of the most popular foods in the world, Americans love chocolate. Unfortunately, so do three pathogenic fungi that attack cacao trees, Theobroma cacao . These trees produce the pods that contain the beans used for making chocolate. The fungal infections lead to diseases known as black pod rot, frosty pod rot, and witches'-broom. Black pod rot is caused by Phytophthora species.