Plenodomus tracheiphilus
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Author(s): S.O. Cacciola, University of Palermo - Italy
Source: PaDIL
Plenodomus tracheiphilus (Petri) Gruyter, Aveskamp & Verkley 2013 - (mal secco of citrus)
The fungus causes an important citrus disease in the Mediterranean region. It is a quarantine organism in many citrus growing countries. The fungus infects the xylem of citrus trees (and closely related plants), resulting in yellowing, wilting and die-back. The symptoms give the appearance of drying up of the twigs and branches. Eventually infected trees die. Removing the bark will show a pinkish discoloration of the xylem. In chronic infections the heartwood turns brown.
The disease was first described in Greece in 1894 and has subsequently spread through the region. Natural spread of the disease by spores is possible over short distances, but the movement of infected plant material is the main route of dispersal. The fungus survives in infected twigs in the soil for several months. No effective control method has been developed and efforts to restrict the further spread of the fungus have focused on planting exclusively disease-free citrus tree.
Synonyms:
Deuterophoma tracheiphila
Phoma tracheiphila
For details see the respective page in Wikipedia.
- Other images of Plenodomus tracheiphilus (IPM Images and PaDIL - click to enlarge)
causing wood discoloration of orange tree
causing die back of orange tree
causing die back of orange tree
symptoms on orange tree
agar cultures
phialoconidia and phialides
