Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

New Hosts for Lecanosticta acicola and Dothistroma septosporum in Spain

Nebai Mesanza
* ,
Rosa Raposo
,
Margarita Elvira-Recuenco
ORCID logo ,
Laura Hernández-Escribano
,
Irene Barnes
,
Ariska van der Nest
,
Mª Teresa Pascual
,
Iskander Barrena
,
Unai San Martín
,
Alejandro Cantero
,
Eugenia Iturritxa
*
Version 1 : Received: 2 December 2019 / Approved: 3 December 2019 / Online: 3 December 2019 (12:18:32 CET)

How to cite: Mesanza, N.; Raposo, R.; Elvira-Recuenco, M.; Hernández-Escribano, L.; Barnes, I.; van der Nest, A.; Pascual, M.T.; Barrena, I.; San Martín, U.; Cantero, A.; Iturritxa, E. New Hosts for Lecanosticta acicola and Dothistroma septosporum in Spain. Preprints 2019, 2019120031. https://doi.org/10.20944/preprints201912.0031.v1 Mesanza, N.; Raposo, R.; Elvira-Recuenco, M.; Hernández-Escribano, L.; Barnes, I.; van der Nest, A.; Pascual, M.T.; Barrena, I.; San Martín, U.; Cantero, A.; Iturritxa, E. New Hosts for Lecanosticta acicola and Dothistroma septosporum in Spain. Preprints 2019, 2019120031. https://doi.org/10.20944/preprints201912.0031.v1

Abstract

The largest impact of needle diseases in the recorded history of Pinus radiata and Pinus nigra plantations in the North of Spain, was from 2018 to 2019. The severity of the disease has led to a serious reconsideration of forest management in the area. The main pathogens involved in this historical outbreak were Lecanosticta acicola and Dothistroma septosporum. Three arboreta were established under the European project REINFFORCE in the Basque Country in recently harvested P. radiata plantations. The plants for the arboreta were produced in nurseries located in the Alps of Upper Provence (France). These arboreta were surrounded by plantations seriously damaged by L. acicola and D. septosporum. The Pinus species which were sampled in the arboreta included P. brutia (4 provenances), P. elliottii (2 provenances), P. nigra (8 or 9 provenances), P. pinaster (7 provenances), P. pinea (6 provenances), P. ponderosa (3 provenances), P. sylvestris (8 provenances) and P. taeda (3 provenances). Lecanosticta acicola is reported for the first time infecting Pinus brutia (Provenance: Alexandropolis, Greece and var. eldarica, Crimea), a new host species for this pathogen. Pinus elliottii (Provenance: Georgia, USA) and P. ponderosa (Provenance: Central California, USA) are new host reports of L. acicola for Spain. Dothistroma septosporum was found for the first time on P. brutia (Provenance: Marmaris, Turkey) and P. ponderosa (Provenance: Oregon, USA) in Spain and was also detected infecting P. nigra (Provenance: Slogne Vayrières, France).

Keywords

bsnb; defoliation; dothistroma needle blight; mycosphaerella dearnessii

Subject

Biology and Life Sciences, Immunology and Microbiology

Copyright: This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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