Efficacy of different fungicides for leaf blight (Alternaria triticina) management in wheat

Abstract

A. triticina, a seedborne pathogen, can cause major damage to susceptible wheat varieties under wet or humid conditions. Considering the importance of leaf blight of wheat caused by Alternaria triticina,the field study was conducted using different fungicides. The different fungicides like, Mancozeb 75% WP, Propineb 70% WP, Hexaconazole 5% SC, Propiconazole 25 % EC, Azoxystrobin 11% + Tebuconazole 18.30% SC and Hexaconazole 4% + Zineb 68% WP tested as foliar spray under field conditions the lower disease intensity (15.79 %) was recorded in foliar application of Propiconazole 25 % EC (500 ppm) followed by Hexaconazole 4 % + Zineb 68 % WP (18.44 %) at 1000 ppm. The maximum grain yield (3831 kg/ha) was also recorded in foliar spray of Propiconazole 25 % EC which was at par with Hexaconazole 4 % + Zineb 68 % WP and Hexaconazole 5 % SC.