Serious outbreaks of root and crown necrosis of strawberry in southern Italy

During autumn-winter 2006/2007 a serious disease was observed in young strawberry plants cv. Ventana grown under plastic tunnels in Basilicata and Campania (southern Italy). Symptoms, present on about 50-60% of the plants, consisted in poor development. Roots were necrotic and diffusely corky. Necro...

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Bibliographic Details
Published in:Journal of plant pathology 2007-12, Vol.89 (3), p.S42-S42
Main Authors: Lahoz, E, Caiazzo, R, Carella, A, Fanigliulo, A, Comes, S, Crescenzi, A
Format: Article
Language:English
Subjects:
Fragaria
Fusarium
Phoma glomerata
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Summary:During autumn-winter 2006/2007 a serious disease was observed in young strawberry plants cv. Ventana grown under plastic tunnels in Basilicata and Campania (southern Italy). Symptoms, present on about 50-60% of the plants, consisted in poor development. Roots were necrotic and diffusely corky. Necrosis and brown areas occurred at the base of the crown, which showed a red tinge when sectioned. Isolation on several growth media yielded colonies mainly of Fusarium sp. and Phoma sp. Based on morphological and molecular characterization the two fungi were identified as Fusarium tricinctum (Corda) Saccardo and Phoma glomerata (Corda) Wollenweber et Hochapfel. The role of the two agents in the genesis of the disease is discussed. In preliminary pathogenicity tests, the two fungi, when inoculated contemporarily, gave symptoms similar to those observed in the field.
ISSN:1125-4653