Alternaria alternata causing necrosis on leaves, fruits, and pedicels of olive plants in Italy
Meriem Miyassa ACI- Giovanni Enrico AGOSTEO
- Sonia PANGALLO
- Anna Maria CICCHELLO
- Saveria MOSCA
- Maria Giulia LI DESTRI NICOSIA
- Leonardo SCHENA
Published 2024-12-15
Keywords
- Olea europaea,
- leaf spot,
- fruit rot
How to Cite
Copyright (c) 2024 Meriem Miyassa ACI, Giovanni Enrico AGOSTEO, Sonia PANGALLO, Anna Maria CICCHELLO, Saveria MOSCA, Maria Giulia LI DESTRI NICOSIA, Leonardo SCHENA
This work is licensed under a Creative Commons Attribution 4.0 International License.
Abstract
This paper is the first report of symptoms caused by Alternaria alternata on aboveground organs of olive plants in Italy. On leaves, symptoms included spots and necroses frequently associated with damage caused by the olive thrips (Liothrips oleae). On fruits, symptoms included browning and necroses of pedicels, necroses of fruitlets soon after fruit set, and rot and mummification of mature fruit. Several isolates of A. alternata with identical morphological features and DNA sequences were associated with all the different symptoms. The impacts of A. alternata on olive production can be severe, and infections to fruit pedicels are particularly relevant as they cause severe fruit fall soon after fruit set.
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References
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