Fuente: WIPO "stone fruits" Compositions for the treatment/prevention of microbial diseases of fruit comprising an effective amount of at least one yeast strain selected from the species Rhodotorula glutinis (Fres.) Harrison, Rhodotorula mucilaginosa (Jorg.) Harrison, Candida parapsilosis (Ashf.) Langeron and Talice, and Candida guilliermondii (Cast.) Langeron; optionally in association with one or more agriculturally acceptable carriers or excipients are described, as well as methods involving the same. Compositions may be applied to fruit either pre-harvest or post-harvest with post-harvest treatment being preferred. Microbial diseases of fruit which may be treated include blue mould, grey mould, mucor rot and transit rot of fruit.