Comparative sensitivity of some new and common fungicides toward Fusarium oxysporum f. sp. ciceris

AbstractWilt disease, caused by Fusarium oxysporum f. sp. ciceris, poses a significant threat to chickpea production globally. To combat this, farmers rely heavily on synthetic fungicides. This in-vitro study assessed the comparative effectiveness of six new and common fungicides viz., propiconazole, azoxystrobin, carbendazim, fenobucarb, fluopyram, metalaxyl and propiconazole against F. oxysporum f. sp. ciceris. Using the poisoned food technique, the fungicides were tested at five concentrations (50, 100, 200, 400 and 500 ppm). The maximum inhibition (100%) in the fungal colonization was observed at 500 ppm and 400 ppm by carbendazim followed by propiconazole at 500 ppm (89.73%) and 400 ppm (85.36%). Lowest percent inhibition over control was recorded by fenobucarb (40.46%) at 50 ppm followed by metalaxyl (46,47%) at 50 ppm. Over all order of mycelial inhibition of fungicides was; Carbendazim > Propiconazole > Azoxystrobin > Fluopyrum > Metalaxyl > Fenobucarb. The inhibitory effect of Fenobucarb was relatively low. However, increasing the fungicide concentration substantially inhibited the growth of mycelium.