Fecha de publicación: 18/11/2020 Fuente: WIPO "apiculture" The invention concerns a solid feed composition for use as nourishment for bees and for the prevention and treatment of acariosis, and, in particular, of infestation by Varroa destructor, as well as the relative treatment method, comprising: a) nutritional and tonic ingredients, consisting of algae containing vegetal proteins and yeasts; sugars and lower organic acids; b) natural antioxidants and antiseptics contained in the extracts of Origanum vulgare and of Pelargonium graveolens or essential oil of geranium and in the essential extracts of one or more aromatic or medicinal plants selected from: Crocus sativus, Monarda citriodora, Melissa officinalis, Myristica fragrans, and Origanum majorana; and c) curative substances for bees, comprising at least one of thymol and essential extracts of Thymus vulgaris, and at least one of oxalic acid, extracts of Aloe vera or Aloe arborescens, geraniol and extracts of Beta vulgaris cv. altissima, and mixtures of two or more of the same.