Premium
Etiology of a Root Rot Disease Complex of Alstroemeria in Alberta, Canada
Author(s) -
Chang K. F.,
Mirza M.,
Hwang S. F.
Publication year - 1993
Publication title -
journal of phytopathology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.53
H-Index - 60
eISSN - 1439-0434
pISSN - 0931-1785
DOI - 10.1111/j.1439-0434.1993.tb01340.x
Subject(s) - biology , wilting , fusarium oxysporum , root rot , pythium aphanidermatum , rhizome , botany , rhizoctonia solani , horticulture , chlorosis , rhizoctonia , damping off , fusarium solani , fusarium , biological pest control
Fusarium oxysporum, Pythiu‐m ultimum , and Rhizoctonia solani were isolated from the basal stems of diseased alstroemeria showing symptoms of dark brown stripes along leaf margins, leaf chlorosis, plant wilting, browning or rotting of basal stem, rhizome, and storage and fibrous roots. The pathogen isolated most frequently was Fusarium spp. (40.5 % of plants examined). Pythium spp. and R. solani were isolated less frequently (5.5 % and 6.8 % of plants examined, respectively). F. oxysporum caused the highest mortality in alstroemeria when rhizomes were grown in unsterilized soil‐less mix medium. This is the first report in North America of a root‐rot disease complex affecting alstroemeria.