Abstract
THE maize rust disease Puccinia polysora Underw was observed in Nyasaland again in the 1953–54 growing season, its first appearance in the country having been in the 1952–53 season. At the Agricultural Research Station, Lilongwe, a replicated trial was carried out in which the use of a fungicide spray ‘Blitane’ (zinc ethylene bis dithiocarbamate) reduced the incidence of the fungus on the maize on sprayed plots as compared with those which were unsprayed. All plots were split into three varieties: (a) an imported hybrid; (b) a locally selected open-pollinated variety; (c) an unselected local native maize.
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