caa a22 4500 467929866 CHVBK 20180406152940.0 cr unu---uuuuu 170328e20060601xx s 000 0 eng 10.1007/s10658-006-9005-8 doi (NATIONALLICENCE)springer-10.1007/s10658-006-9005-8 Elena K. Benaki Phytopathological Institute, 8 S. Delta str., 145 61, Kifissia-Athens, Greece aut Alternaria Brown Spot of Minneola in Greece; Evaluation of Citrus Species Susceptibility [Elektronische Daten] [K. Elena] During the last three years, a new disease was observed in northwestern Greece on Minneola trees, hybrid of mandarin and grapefruit. On May small brown necrotic leaf spots surrounded by yellow halo areas of various sizes appeared and covered a major portion of the leaves with extension of necrosis into the veins. On young fruits small, slightly depressed black spots were the first symptoms, which later became 2-7mm in diameter. Brown spots were observed on the leaves and fruits in several orchards in the same area, causing leaves and fruits to drop. In some orchards over 50% of the fruits were affected. From the fruit and leaf spots the typical small-spore species Alternaria alternata was isolated. Pathogenicity tests were performed by artificially inoculating fruits of Minneola, common mandarin and Clementine. The symptoms of the disease were reproduced only on fruits of Minneola hybrids by the specific strain of the fungus Alternaria alternata pv. citri. Different citrus susceptibility tests indicated that mandarins Minneola, Nova and Page were very susceptible to tested isolates while Clementine SRA and Poros Clementine were not. All lemons and lime Seedless were not susceptible. Grapefruit New Hall was not susceptible, while the Star Ruby was. Orange Lane Late, Navel Late, Oval Poros, Olinda, Navel Athos were not susceptible and only Moro showed reaction being slightly susceptible only to one isolate. Springer, 2006 Alternaria alternata pv. citri nationallicence Citrus reticulata × C. paradisi nationallicence mandarin nationallicence European Journal of Plant Pathology Kluwer Academic Publishers 115/2(2006-06-01), 259-262 0929-1873 115:2<259 2006 115 10658 https://doi.org/10.1007/s10658-006-9005-8 text/html Onlinezugriff via DOI 1 brief-communication jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10658-006-9005-8 text/html Onlinezugriff via DOI NATIONALLICENCE 100 1- Elena K. Benaki Phytopathological Institute, 8 S. Delta str., 145 61, Kifissia-Athens, Greece aut NATIONALLICENCE 773 0- European Journal of Plant Pathology Kluwer Academic Publishers 115/2(2006-06-01), 259-262 0929-1873 115:2<259 2006 115 10658 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer