Fungicides effect on conidia germination of Claviceps africana in vitro

Abstract

The sorghum crop did not face serious problems with diseases in Brazil, until occurrence of sugary disease (sorghum ergot), caused by Claviceps africana, was recorded in 1995 in Brazilian sorghum fields. The pathogen infects panicles reducing the quantity and quality of the produced grains. Conidia are the main fungus inoculum. This work aimed to study the potential of fungicides tebuconazole, propiconazole, triadimenol, triadimefon, flutriafol and mancozeb in inhibiting conidia germination in vitro. The fungicides mancozeb, triadimenol and propiconazole were the most effective to inhibit the in vitro germination.