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Identification of armillaria spp in sicily italy


, : Identification of armillaria spp in sicily italy. Micologia Italiana 18(1): 15-25

Three species of Armillaria naturally occurring in Sicily have been identified by their morphological and cultural characteristics on artificial media. Interfertility of isolates of the species above mentioned and strains from other European countries have been tested. A. mellea, is widespread in Sicilian soils, from seaside orchards up to forest stands of Fagus, Quercus and Betula in Etna Mount as well as in the forest stands of Fagus and Quercus in the Nebrodi and Caronie Mountains. It is especially pathogenic in orchards and vineyards, while in the forest stands of Castanea, Quercus and various hardwoods it is generally a saprophyte or weak parasite. All the isolates of A. mellea were compatible with the isolates of European biological species D of K. Korhonen. A. bulbosa is less common than A. mellea, the former species was on hill mainly on Quercus and several hardwoods. Generally it is a saprophyte. According to the result of interfertility tests, all isolates belonging to A. bulbosa have been referred to European biological species E of K. Korhonen. A. tubescens is easily recognizable from the other species of Armillaria by the absence of ring. It was found especially on Quercus, as saprophyte, in restricted places up to 500 meters above sea level.

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