Efficacy of fungicides against downy mildew and yield on onion
2000
Khokhar, L.K. (National Agricultural Research Centre, Islamabad (Pakistan). Crop Diseases Research Inst.) Jaffrey, A.H.
Six different fungicides, i.e. Ridomil MZ 72 WP, Antracol 70 WPM, Liromanzeb 80 Dithane M 45 WP, Polyram Combi and Cupravit were tested against downy mildew disease of onion caused by Peronospora destructor Berk in the field under artificially created disease pressure for two consecutive years (1994-95). Ridomil MZ 72 WP was found to be the most effective fungicide followed by Antracol 70 WP, Liromanzeb 80 Wp and others. These fungicides also increased the onion yield by 33-73% over the control. This yield increase was 73% in case of Ridomil MZ 72 WP, while in Antracol 70 WP and Liromanzeb 80 WP it was 66%. It was 40% in Dithane M 45 WP but in Polyram Combi and Cupravit yield obtained was 33%.
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