In order not to allow this disease to its peonies, in early spring the bushes and the soil in the forest zone must be treated with Bordeaux mixture (3 liters per bush).
Ka ịghara ikwe ka ọrịa a na-eme ya, ná mmalite oge opupu ihe ubi, a ga-emeso bushes na ala n'ime oke ọhịa ahụ na ngwakọta Bordeaux (3 lita kwa ohia).