Abstract
Olive (Olea europaea L.) is a traditional crop of great socioeconomic importance in the Mediterranean Basin. In 2021, a survey was performed in an Italian nursery located in Central Italy where unusual symptoms and widespread dieback had been observed on young potted olive trees. Twigs and branches of all plants affected by dryness showed the presence of the alien bark beetle Xylosandrus compactus. Woody tissues colonized by X. compactus were transferred into the laboratory and several fungi such as Cladosporium perangustum and Neofusicoccum parvum were then identified. In addition to these species, Geosmithia pallida was also reported for the first time in Italy on this plant. Studies on this bark beetle and its associated fungi are currently in progress to further evaluate potential risks for olive cultivation. Key Words: Olea europea, fungi, bark beetles.
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