Department of Plant Protection, Sam Higginbottom Institute of Agriculture Technology and Sciences, Formerly Allahabad Agricultural Institute, (Deemed to be University), Allahabad - 211007, Uttar Pradesh, India
Online published on 13 January, 2015.
In these study chemicals, bio-agents and botanicals were used as seed treatment for their antifungal efficacy against the growth of Alternaria spp, incitant of alternaria leaf spot of Cabbage (Brassica olaracea var. capitata L.) The minimum disease severity on leaves (15.13%) was recorded in Neem oil with 3% concentration. The other treatments viz, Neem leaf extract(100%), Trichoderma viride (5 gm./kg seed), Pseudomonas fluorescens (5 gm/kg seed), carbendazim (2 gm/kg seed) and mancozeb (2.5gm/kg seed) also showed the disease severity with 16.27%, 17.35%, 16.71%, 16.31% and 16.59% respectively when compared to control. All the treatments give the yield of fresh cabbage (Head) ranged from 26.88 to 32.21 tonnes per hectare significantly, the highest yield was recorded in neem oil (3%) with 32.21 tonnes per hectare, followed by neem leaf extract 30.77, carbendazim 27.32, mancozeb 26.88, T. viride 25.99 and P. fluorescens 25.88 tone per hectare.
Leaf spot, Alternaria brassicae, Alternaria brassicicola, Botanicals, Bio-agents, Fungicides
