Some phytosanitary investigations on chestnut coppices located on the Etna volcano
Abstract
Four chestnut stands located on the Etna volcano flanks were investigated to verify the influence of the diseases on these particular ecosystems. An heavy presence of the chestnut blight (Cryphonectria parasitica) was detected, but the damages were limited as an effect of the natural spread of the parasite hypovirulent isolates. In 1994, the disease appeared more severe in two areas: in Monte Crisimo for the spread of a new line of the parasite while in Fossa la Nave following a wildfire. Blight seems to have no influence on chestnut biomass production and it is not the main disturbance factor in the evolution ol these ecosystems.© PRUNELLA Publishers
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