Fuente: WIPO "tomato" An aim of the present invention is to provide a composition for plant disease control containing a bacteriophage, wherein the composition for plant disease control is inhibited from decreasing in the bacteriolytic activity or maintains the bacteriolytic activity, and has excellent persistence characteristics. One aspect of the present invention is a composition for plant disease control, comprising: a bacteriophage with bacteriolytic activity against bacteria; and an organic silicone-based surfactant.