First report of Diplodia africana on Grevillea robusta

Selene GIAMBRA; Giuseppe VENTURELLA; Santella BURRUANO; Maria Letizia GARGANO

doi:10.14601/Phyto-10745

Phytopathologia Mediterranea (Jan 2020)

First report of Diplodia africana on Grevillea robusta

Selene GIAMBRA,
Giuseppe VENTURELLA,
Santella BURRUANO,
Maria Letizia GARGANO

Affiliations

Selene GIAMBRA: Department of Agricultural, Food and Forest Sciences, University of Palermo, Viale delle Scienze, Bldg 5, Palermo, I-90128, Italy
Giuseppe VENTURELLA: Department of Agricultural, Food and Forest Sciences, University of Palermo, Viale delle Scienze, Bldg 5, Palermo, I-90128, Italy
Santella BURRUANO: Department of Agricultural, Food and Forest Sciences, University of Palermo, Viale delle Scienze, Bldg 5, Palermo, I-90128, Italy
Maria Letizia GARGANO: Department of Agricultural, Food and Forest Sciences, University of Palermo, Viale delle Scienze, Bldg 5, Palermo, I-90128, Italy

DOI: https://doi.org/10.14601/Phyto-10745
Journal volume & issue: Vol. 58, no. 3

Abstract

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Branch cankers and dieback were observed on silky-oak trees (Grevillea robusta) along some streets of Palermo (Sicily, Italy). Fungi isolated from symptomatic branches were identified as Diplodia africana and D. seriata by morphological characters and phylogenetic analyses of combined ITS and translation elongation factor 1-α sequences. Pathogenicity was verified by inoculating twigs of 3-y-old silky-oak plants. This is the first report of D. africana on G. robusta and the first record of D. seriata on this host in the northern hemisphere.

Botryosphaeriaceae, silky-oak, D. seriata, dieback, canker.

Published in Phytopathologia Mediterranea

ISSN: 0031-9465 (Print); 1593-2095 (Online)
Publisher: Firenze University Press
Country of publisher: Italy
LCC subjects: Science: Botany
Website: https://oajournals.fupress.net/index.php/pm/index

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