title: Bacterial etiology of necrotic spots on leaves and shoots of grapevine (Vitis vinifera L.) in Poland
abstract: Abstract Dark brown, spotted necrotic areas were observed on the leaves and young shoots of grapevine ( Vitis vinifera ) plants of cvs. Fanny and Muscat Bleu growing on plantations in Central Poland. From 35 samples of symptomatic leaf and young shoot tissues, 70 bacterial isolates were obtained, of which 16 induced HR on tobacco leaves, but only two showed pectolytic activity on potato tubers and CVP medium. Pathogenicity tests performed with seven selected isolates, including the two pectolyti
journal: European Journal of Plant Pathology