Articles
PRELIMINARY STUDIES TO ESTABLISH A PATTERN FOR DEVELOPMENT OF APRICOT DIEBACK
Article number
803_10
Pages
91 – 96
Language
English
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 plants sensitivity and the pathogens 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.
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 plants sensitivity and the pathogens 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.
Authors
M. Oprea, V. Jinga, M. Popescu
Keywords
early dying, cryptogamic diseases, stone fruit tree, sensitive wound, conidia
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