ISHS Acta Horticulturae 803: VIII International Symposium on Modelling in Fruit Research and Orchard Management
PRELIMINARY STUDIES TO ESTABLISH A PATTERN FOR DEVELOPMENT OF APRICOT DIEBACK |
| Authors: | M. Oprea, V. Jinga, M. Popescu |
| Keywords: | early dying, cryptogamic diseases, stone fruit tree, sensitive wound, conidia |
| Abstract:
Dieback of apricot is a phenomenon frequently encountered in the orchards of Romania. The intensity varies with soil type, climatic conditions, tree phenology, conditions for development of lignicolous fungi, and pathogen virulence. Pathogenic fungi with lignicolous behavior have been isolated from trees showing evidence of decline. Isolated from stem and branches older 2 years: Monilinia laxa, Cytospora cincta, Eutypa lata, Schizophyllium commune, Stereum purpureum, Coniothyrium amygdale. Isolated from roots, root collar: Cylindrocarpon radicicola, Fusarium sambucinum. Timing of incidence is determined by the climatic conditions (temperature and rainfall) that increase the host plant’s sensitivity and the pathogen’s virulence and by the phenology phase of the host plant. In apricot the plant is most sensitive to attack during the autumn when the leaves fall until April of the following year. | |
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