Fusarium oxysporum f.sp. conglutinans
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Author(s): Josef Schlaghecken
Source: Hortipendium
Fusarium oxysporum f.sp. conglutinans (Wollenw.) W.C. Snyder & H.N. Hansen 1940 - (Fusarium wilt of canola)
The fungus has a world-wide distribution and causes wilt and yellows disease of cabbage, canola and other crucifer crops. It can reduce yield by up to 30% and some cases of total losses have been reported. The wilt symptoms include vascular discoloration and premature senescence of the leaves, sometimes only on one side of the plant. Some resistant cultivars are known.
The fungus can persist in the soil or in plant residues as chlamydospores. Under warm conditions, these germinate, the hyphae enter the roots, and then spread through the vascular system. Two races of the fungus have been described. While race 1 is found in many countries, race 2 has been only reported from some parts of North America.
The page Fusarium oxysporum gives a general overview of the biology of this fungus.
Synonyms:
Fusarium conglutinans
- Other images of Fusarium oxysporum f.sp. conglutinans (Hortipendium and IPM images - click to enlarge)
symptoms on cauliflower leaves
symptoms on cabbage
