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varietal resistance

  • R293 Matching Blight Fungicides to Cultivar Resistance

    Aim: To demonstrate the effectiveness of fungicide control on cultivars with a wide range of foliar blight resistance ratings, and to meet the requirements of the EU Thematic Strategy on the...

  • Varietal Resistance to 13 A2

    Following the introduction of the A2 mating type of Phytophthora infestans into Europe in the late 1970s, new strains of late blight pathogen have subsequently developed in all countries. In GB since...