Comparative efficacy of myclobutanil, triadimefon and mancozeb against major fungal diseases of chilli

Three fungicides viz., myclobutanil 10WP, triadimefon 25WP and mancozeb 75WP were evaluated for their relative efficacy against three fungal diseases of chilli viz., powdery mildew [Leveillula taurica (lev) Am.], leaf spot [Cercospora capsici Heald and F.A. wolf] and anthracnose [Colletotrichum capsici (Syd.) Butler and Bisby] at Indian Institute of Horticultural Research, Bangalore, India. Triadimefon (0.01%) was found to be most effective in controlling all the three diseases together and in increasing the yield followed by myclobutanil (0.04%). Among the different concentrations of myclobutanil (10% WP), However the benefit cost ratio was high with myclobutanil at 0.04 per cent and hence can be recommended for the management of powdery mildew, anthracnose and leaf spot on chilli.