A composition for protecting plants against chitinous pathogens and/or treating infestations of chitinous pathogens comprises pellets which include a source of chitin and a bacteria capable of producing chitinase. In certain embodiments, the bacteria are in the form of spores. In some embodiments, the pellets may include a binder material. In some embodiments, the chitin source may form a core of each pellet and the core may be at least partially surrounded by one or more layers of the bacteria.
