Experiments with foliar sprays of thiabendazole and captafol for control of potato gangrene

Abstract

S U M M A R YIn an experiment designed to measure the effect of foliar sprays of fungicides on gangrene in stored tubers thiabendazole but not captafol reduced yield by 30%. Although both fungicides reduced disease incidence in stems and tubers the extent of the reduction was so small that foliar sprays were considered unimportant as a method of control. Sprays of thiabendazole and captafol applied to the haulm 1 wk or 1 wk and 2 wk after desiccation did not reduce the incidence of gangrene in storage.