Abstract
SUMMARYVery severe infection of several crops of spring barley by Cochliobolus sativus occurred in Scotland during 1971–73. The most severely infected cultivar was Clermont, the high, susceptibility of which, combined with extensive seed infection, was responsible for the outbreak. Seed‐borne infection by C. sativus was not wholly controlled by mercurial seed treatments, although no mercury tolerance was detected. The fungus is able to overwinter in the soil in Scotland and can also survive by infecting other graminaceous hosts. Several of these are believed to be new host records for this fungus in Britain.
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