Field evaluation of fungicide, biotic and abiotic inducers for the management of Alternaria alternata leaf blight of sunflower

Leaf blight caused by Alternaria alternate is the major disease of sunflower affecting the successful cultivation across India. fungicides, biotic and abiotic inducers namely Propiconazole, Ginger, Salicylic acid, Bacillus subtilis, Pseudomonas sp, Bacillus pumilus, Pseudomonas fluorescens, Mancozeb in eight different treatment as spray and as seed treatment were evaluated against Alternaria leaf blight of sunflower at kadukanpalaym Erode district, Tamil Nadu. This experiment was carried out for 2019 during Kharif season. During 2019, the experimental results revealed that combination of seed treatment with entophytes Pseudomonas sp. 10g/kg of seed + foliar spray at 30 and 45 days after sowing recorded least per cent disease intensity with highest yield among all treatments.