INVESTIGADORES
MORENO Maria virginia
artículos
Título:
First Report of Stagonospora foliicola on harding grass (Phalaris aquatica) in Argentina.
Autor/es:
MORENO M. V.; PERELLÓ, A. E.
Revista:
PLANT PATHOLOGY
Editorial:
Blackwell
Referencias:
Año: 2006 vol. 56 p. 724 - 724
ISSN:
0032-0862
Resumen:
Harding grass (Phalaris aquatica) is a perennial grass spread throughout most of the pampas plains in Argentina. It is a particularly valuable plant which is commonly seeded as a nutritious forage grass and also used for hay and silage.Since 2004 leaves symptoms have been observed in plants across the agricultural area of Buenos Aires Province. In the field, oval, elongated, vinaceous lesions appear on lower leaves; as they enlarged they tended to become dark brown to reddish-brown blotches, usually with pointed ends and buff centers. Pycnidia between the leaf veins were observed on dead leaves. All isolates obtained were identified as S. foliicola. Pathogenicity tests were conducted in the greenhouse. Harding grass var. “el gaucho” was inoculated with a conidial suspension (1 x 106conidia per ml). The plants of harding grass artificially inoculated were susceptible to infection by S. foliicola, which was recovered from lesions.