Comparison of the Susceptibility of Quercus petraea, Q. robur and Q. rubra to Collybia fusipes |
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Authors: | Benoit Marçais Olivier Caël |
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Affiliation: | (1) Laboratoire de Pathologie Forestière, Institut National de la Recherche Agronomique, 54280 Champenoux, France;(2) Laboratoire de Pathologie Forestière, Institut National de la Recherche Agronomique, 54280 Champenoux, France |
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Abstract: | Collybia fusipes is the cause of a root rot of Quercus petraea (sessile oak), Q. robur (pedunculate oak) and Q. rubra (red oak). This parasite is often reported to cause problems in stands of red oaks and field evidence suggests that this North American oak species is more susceptible than the two European oak species. Young saplings of the three oak species and of chestnut, Castanea sativa, in the glasshouse, and also mature sessile and red oaks growing in the same stand were inoculated with C. fusipes to compare their susceptibility. Red oak, both as young seedlings and mature trees, was more susceptible to C. fusipes than sessile oak. Chestnut seedlings were as susceptible as sessile oak. Susceptibility of pedunculate oak seedlings was intermediate between red oak and sessile oak. In one experiment this species was significantly less susceptible than red oak, and in the other it was as susceptible. |
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Keywords: | root rot oak Quercus petraea Quercus robur Quercus rubra Collybia fusipes artificial inoculation |
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