National Academy of Agricultural Sciences (NAAS)
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PRINT ISSN : 2319-7692 Online ISSN : 2319-7706 Issues : 12 per year Publisher : Excellent Publishers Email : editorijcmas@gmail.com / submit@ijcmas.com Editor-in-chief: Dr.M.Prakash Index Copernicus ICV 2018: 95.39 NAAS RATING 2020: 5.38 |
Downy mildew disease (DMD) of cucumber is destructive in nature and reduces fruit yield. Fungicides were used to control DMD but still DMD occurs. Hence, for the good alternative fungicide to control DMD, field experiment on efficacy of ametoctradin + dimethmorph against DMD was conducted in rabi and kharif season. There were 8 treatments with seven fungicides and control. Observations on per cent disease index (PDI), fruit yield and phytotoxicity of fungicides on cucumber were recorded. In rabi season, ametoctradin 300g/l + dimethomorph 225 g/l SC with 525g.a.i reduced PDI maximally (14.74 %) followed by zampro 525 SC (15.12%). In kharif season, ametoctradin 300g/l + dimethomorph 225 g/l SC with 525g.a.i reduced PDI maximally (13.63%) followed by zampro 525 SC (14.09%). In rabi and kharif season, ametoctradin 300g/1 + dimethomorph 225 g/1 SC with 525g.a.i treated plants produced significantly higher yield of cucumber fruits (23.33t/ha, 24.23t/ha) followed by zampro 525 SC (22.92t/ha, 23.00t/ha) over other fungicides. Ametoctradin 300 g/l + dimethomorph 225 g/l SC @ 1000 ml/ha and @ 2000 ml/ha were not toxic to cucumber plant in rabi and kharif season. The results concluded that use of ametoctradin 300g/l + dimethomorph 225 g/l SC with 525g.a.i resulted in reduced PDI and improved yield.
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