Evaluation of fungistatic activity of agrochemicals to seed mycoflora of mungbean under storage condition

Screening of fungistatic activity of nine fungicides (500, 1000 & 1500 ppm) with control was tested against seed-borne mycoflora of mungbean (Vigna radiata L.). Two fungal species viz., Aspergillus niger and Aspergillus flavus were isolated from the stored grains of mungbean. Their efficacy was measured by food poisoning technique on Potato Dextrose Agar in petridishes. All nine fungicides significantly reduced seedborne Aspergillus niger and Aspergillus flavus associated with mungbean seeds. A variable effect of different concentrations of the test fungicides viz., 500,1000 and 1500 ppm was recorded against Aspergillus niger and Aspergillus flavus. All the employed concentrations of Carbendazim and Carbendazim (12%) + Mancozeb (63%) totally suppressed both the test fungi. Effect of all applied concentrations of Mancozeb, Copper Oxychloride and Thiophanate methyl showed least mycelial growth inhibition but higher dose partially suppressed both the fungi.