Abstract
The occurrence and elements of morphology of P. negriana Thüm. were studied. The fungus cultures were isolated from grapevine canes cultivated in South–East Poland. Grapevine stems from which the cultures of P. negriana were obtained showed symptoms of necrosis and bark break. The species of the fungus was identified on the basis of pycnidia and conidia morphology, the character of colonies growth and biochemical features of the studied isolates.
Keywords
Phoma negriana; occurrence; elements of morphology