Efficacy of fungicides and plant extracts for management of sheath rot disease in Rice

Out of seven fungicides tested, difenconazole 25 EC and tricyclazole 75WP inhibited mycelial growth of the fungus by more than 80% at 200 ppm concentration. In field, minimum (14.2%) disease severity and maximum (3.70 t/ha) yield found with difenconazole 25EC (0.1%). Among plant extracts, Azadirachta indica and Aloe vera were effective as they produced growth inhibition ranging, respectively, between 26.8 to 48.3% and 25.6 to 46.3%. Spraying of plant extracts, Azadirachta indica showed minimum (28.7%) disease severity and maximum (1.90 t/ha) yield.