Laboratory evaluation of fungicides against fungi causing flower blight of chrysanthemums

Abstract

A poisoned food technique was used to evaluate the efficiency of 15 fungicides in the laboratory against 5 fungi causing chrysanthemum flower blight viz Alternaria alternata, Botrytis cinerea, Itersonilia perplexans, Mycosphaerella ligulicola, and Stemphylium vesicarium. No one fungicide was outstanding at low concentrations against all five fungi, but several performed well at higher concentrations. On the basis of the composite ED50 value for each fungicide, captafol, chloroneb, mancozeb, and thiram appeared the most promising fungicides. © 1974 Taylor and Francis Group, LLC.