In Vitro Evaluation of Selected Fungicides Against Curvularia geniculata on Digitaria iburua Kippist Stapf in Riyom, Plateau State
Keywords:
Curvularia geniculata, Fonio, Fungicides, in Vitro, Mycelia, Conidia, InhibitionAbstract
Five fungicides at varying concentrations (0 x; 0.5x; 1x and 1.5x where xis manufacturer‟s recommended rate) were evaluated in vitro, against Curvularia geniculata isolated from Fonio. Seven days old culture was placed on Petri dishes containing Potato Dextrose (PDAs) amended with fungicides at varying rates and mycelial growth measured at two days intervals starting from 2 days to 12 days after inoculation (DAI). On the14 DAI, conidia were counted using a haemocytometer. The inhibitory effect on mycelial growth and sporulation significantly varied amongst the fungicides and rates with the highest effect recorded with Mancozeb while the least was from Thiomethoxan+Metalaxyl-M+ Difenoconazoleal though it was not different from Carbendazim, Benomyl and Carbendazim+ Mancozeb.