Management of tomato early blight [Alternaria solani (Ellis & Martin) Sorauer] through botanicals and fungicides under in-vitro and in-vivo conditions

Abstract

Early blight is the most harmful and dangerous disease of tomato worldwide. In the present investigation, five plant extracts and five fungicides were evaluated against Alternaria solani under in-vitro condition and effective botanicals and fungicides were evaluated under field condition. Among all the botanicals, Azadirachta indica leaf was found most effective botanicals under in-vitro evaluation followed by Datura fastuosa leaf and Allium cepa leaf. Among the fungicides, minimum mycelial growth of Alternaria solani was found in Fluciazole 40% followed by Carbendazim 50% WP, Difenoconazole 25% EC, Azoxystrobin 23% SC and Mancozeb 75% WP. In field experiment, Fluciazole 40% EC and Carbendazim 50% WP found most effective among all the treatments.