ABSTRACT

Disease cycle The epidemiological relationship between the three Fusarium diseases has yet to be elucidated fully.

Each of the three Fusarium diseases of cereals may be caused by any one of the above pathogens. In temperate regions, F. culmorum and M. nivale predominate, whereas in hotter climatic areas, F. graminearum is more common. All cereals can be affected by the diseases, but research has focused on wheat. Severe symptoms of Fusarium seedling blight consist of pre-and post-emergence damping off. Should seedlings survive, they often develop brown lesions around soil level. It is also possible for symptomless infections to occur.