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Pathogenicity studies in avocado with three nectriaceous fungi, Calonectria ilicicola , Gliocladiopsis sp. and Ilyonectria liriodendri
Author(s) -
Dann E. K.,
Cooke A. W.,
Forsberg L. I.,
Pegg K. G.,
Tan Y.P.,
Shivas R. G.
Publication year - 2012
Publication title -
plant pathology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.928
H-Index - 85
eISSN - 1365-3059
pISSN - 0032-0862
DOI - 10.1111/j.1365-3059.2011.02579.x
Subject(s) - biology , pathogenicity , botany , fungal pathogen , cultivar , pathogen , microbiology and biotechnology
Calonectria ilicicola , Gliocladiopsis sp. and Ilyonectria liriodendri were isolated from diseased roots of young avocado trees. Pathogenicity studies with seedlings of three avocado cultivars, Velvick, Hass and Reed, demonstrated that Calonectria ilicicola is a severe root rot pathogen, reducing the biomass of healthy roots, and reducing plant height over time. Calonectria ilicicola was re‐isolated from diseased roots. Ilyonectria liriodendri and Gliocladiopsis sp. were not pathogenic and plant height was increased after Gliocladiopsis sp. amendment compared to all other treatments in trials with cvs Velvick and Hass.