ISHS Acta Horticulturae 386: XVI International Symposium on Fruit Tree Virus diseases
SEVERE DIE- BACK OF PLUM IN CENTRAL ITALY IS ASSOCIATED WITH MLOS AND VIRUS INFECTIONS |
| Authors: | M. Pilotti, F. Faggioli, F. Lauretti, M. Barba |
| Abstract:
A severe plum decline occurred in several orchards in central Italy. Fifty samples were collected from five orchards of the following Japanese plum cultivars: Midnigth Sun, Howard Sun, Globe Sun, Angeleno, Black Gold, Black Diamond. Biological, serological and electron microscopy assays showed the presence of MLOs and chlorotic leaf spot virus (CLSV) in a close association with the above mentioned symptoms. We suggest these agents play an important role in the etiology of the plum severe die-back, since symptomatological features of Plum leptonecrosis (caused by MLO) and plum bark split (caused by CLSV) seem to correspond, each separately, to a part of the observed symptomatology. | |
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