Ilyonectria destructans
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Author(s): P. Chaverri, C. Salgado, Y. Hirooka, A.Y. Rossman and G.J. Samuels
Source: Studies in Mycology, 2011, 68 p.69
Ilyonectria destructans (Zinssm.) Rossman, L. Lombard & Crous 2015
The fungus has a worldwide distribution and is soilborne, causing root rot and other symptoms on trees and many crops, e.g. strawberry, grapevine or ginseng. Infections can result in substantial losses, e.g. up to 30% on ginseng. They may start through the root tips or the crown of the taproot and later spread to other parts of the plant, infecting the vascular system and causing necrosis, chlorosis, wilting and often plant death.
In the asexual stage, the fungus produces elongated macroconidia (around 20-50 x 4-6 µm, 1-3 septate), elliptical microconidia (about 5-10 x 3-4 µm), as well as spherical chlamydospores (about 10 µm in diameter). The sexual perithecia are orange or reddish and spherical, ascospores are approximately 10-13 x 3-5 µm large.
| Vernacular names | |
|---|---|
| • Deutsch: | Wurzelfäule der Erdbeere |
| • English: | black root of strawberry |
| • Español: | podredumbre negra del fresal |
| • Français: | pourriture noire du fraisier |
Taxonomic note: Some grapevine strains are now placed in Ilyonectria liriodendri.
Synonyms:
Cylindrocarpon destructans
Ilyonectria radicicola
Nectria radicicola
Neonectria radicicola
