International Journal of Plant Protection

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Bio-Efficacy and Phytotoxicity Study of Pyraclostrobin 133g/l + Epoxyconazole 50 g/l SE(Opera 18.3% SE) against Sigatoka Leaf Spot Disease of Banana Caused by Mycosphaerella musicola


Affiliations
1 Department of Plant Pathology, College of Horticulture, Mysuru (Karnataka), India
2 Department of Fruit Science, College of Horticulture, Mysuru (Karnataka), India
     

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Two to three sprays of pyraclostrobin 13.3% + epoxyconazole 5%(Opera 18.3%)@0.15% effectively controlled the Sigatoka leaf spot disease but this treatment was as par with propiconazole 0.1 per cent. The next best treatments were pyraclostrobin 13.3% + epoxyconazole 5% (Opera 18.3%)@0.125% and epoxyconazole 7.5%EC.With regard to yield, the treatment propiconazole @ 0.1 % recorded the highest yield of 31.94 t/ha followed by pyraclostrobin 13.3% + epoxyconazole 5%@0.15% (29.95 t/ha) and it was lowest in control. Phytotoxicity symptoms like chlorosis, necrosis, wilting, scorching, hyponasty and epinasty were not noticed in any of the treatments.

Keywords

Banana, Sigatoka Leaf Spot, Mycosphaerella musicola.
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  • Bio-Efficacy and Phytotoxicity Study of Pyraclostrobin 133g/l + Epoxyconazole 50 g/l SE(Opera 18.3% SE) against Sigatoka Leaf Spot Disease of Banana Caused by Mycosphaerella musicola

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Authors

N. Thammaiah
Department of Plant Pathology, College of Horticulture, Mysuru (Karnataka), India
G. S. K. Swamy
Department of Fruit Science, College of Horticulture, Mysuru (Karnataka), India

Abstract


Two to three sprays of pyraclostrobin 13.3% + epoxyconazole 5%(Opera 18.3%)@0.15% effectively controlled the Sigatoka leaf spot disease but this treatment was as par with propiconazole 0.1 per cent. The next best treatments were pyraclostrobin 13.3% + epoxyconazole 5% (Opera 18.3%)@0.125% and epoxyconazole 7.5%EC.With regard to yield, the treatment propiconazole @ 0.1 % recorded the highest yield of 31.94 t/ha followed by pyraclostrobin 13.3% + epoxyconazole 5%@0.15% (29.95 t/ha) and it was lowest in control. Phytotoxicity symptoms like chlorosis, necrosis, wilting, scorching, hyponasty and epinasty were not noticed in any of the treatments.

Keywords


Banana, Sigatoka Leaf Spot, Mycosphaerella musicola.

References