Diagnosis and management of Sclerotinia stem rot (white mould) of lentils in Greece
2014
Vagelas, Ioannis
The paper describes the field-level symptoms, the identification and management of Sclerotinia stem rot of lentil caused by the soilborne plant pathogen Sclerotinia sclerotiorum in Greece. Regarding symptoms at a field level, initially plants before flowering turn yellow with roots and the base of the plants become brown; then rotten plants exhibit a dry stem and die. On the diseased tissue, at the base of the stem, the typical white mycelium and the resting bodies (sclerotia) were observed. According to our pathogenicity studies in vitro , on the infected plant tissues the fungus first develop a characteristic fluffy white mycelium which will give rise to large black sclerotia, the most obvious evidence of plants infected with S. sclerotiorum. Finally, concerning evaluation of fungicides, isolates of S. sclerotiorum were sensitive to thiophanate-methyl and to triazole fungicides. Thiophanate-methyl and triazole fungicides proved to be most effective in controlling the disease emerged from mycelium or sclerotia.
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