EPPO Global Database

Cryphonectria parasitica(ENDOPA)

Photos

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Pycnidial stromata in the bark, conidial tendrils are excreted.

Courtesy: LNPV, Nancy (FR).

Perithecia in a stroma, necks and ostioles in papillate protuberances of the stroma (bar = 500 ìm).

Courtesy: SFI, Ljubljana (SI).

Orange-yellow pycnidia of C. parasitica on chestnut tree bark.

Courtesy: Ministry of Agriculture (HU).

Swelling and bark cracking on 13-year-old chestnut tree.

Courtesy: Ministry of Agriculture (HU).

Characteristic mycelial fan of C. parasitica in the inner bark of a chestnut tree.

Courtesy: Ministry of Agriculture (HU).

Cultures of C. parasitica isolates on PDA (1 – virulent, 2 – hypovirulent, 3 and 4 – intermediate virulence).

Courtesy: SFI, Ljubljana (SI).

Ascus, ascospores and conidia (bar = 20 ìm).

Courtesy: SFI, Ljubljana (SI).

Long, orange-yellow tendrils of C. parasitica pycnidiospores exuding from pycnidia on chestnut tree bark.

Courtesy: Ministry of Agriculture (HU).

Pycnidium from culture, inner wall is covered with conidiogenous cells (bar = 50 ìm).

Courtesy: SFI, Ljubljana (SI).

Sunken area on bark of a young chestnut tree. Note adventitious shoots arising below the dead patch.

Courtesy: Ministry of Agriculture (HU).