Vol. 10, Special Issue 12 (2021)

Author(s):
MR Shekhada, Priya John, KN Panara and SA Ladumor

Abstract:
Early blight caused by Alternaria solani (Ellis and Martin) Jones and Grout is one of the most widely spread and destructive disease of tomato. The field efficacy of selected ten treatments was studied for the management of early blight of tomato caused by A. solani during late kharif 2019-20 and 2020-21. All the treatments reduced the disease intensity as compared to control. Among the treatments [Propiconazole (25%) EC, Mancozeb (75%) WP, Copper oxychloride (50%) WP, Carbendazim (12%) + mancozeb (63%) WP, Tebuconazole (50%) + trifloxystrobin (25%) WG, Allium sativum extract, Azadirachta indica extract, Trichoderma harzianum and Pseudomonas fluorescens] three sprays, first at disease initiation, second at 15 days after the first spray and third at 15 days after the second spray of tebuconazole (50%) + trifloxystrobin (25%) at 0.05 per cent recorded significantly the lowest disease intensity (8.13%, 10.40% and 13.47%) at 45, 60 and 75 days after transplanting, respectively with the highest yield (35.14 t/ha) and was found to be the most effective for the management of early blight disease and increasing fruit yield over control.