EVALUATION OF FUNGICIDES AGAINST POWDERY MILDEW DISEASE OF GRAPES UNDER FIELD CONDITION

R. DAS¹*
¹Department of Plant Pathology, Regional Research Sub Station (Red & Laterite Zone), Bidhan Chandra Krishi Viswavidyalaya, Sekhampur, P.O. Gadadharpur, 731129, District: Birbhum, West Bengal, India
* Corresponding Author : rajudas05@gmail.com

Received : 02-12-2020     Accepted : 26-12-2020     Published : 30-12-2020
Volume : 12     Issue : 12       Pages : 1932 - 1934
Int J Microbiol Res 12.12 (2020):1932-1934

Keywords : Evaluation, Fungicides, Grapes, Powdery mildew disease
Academic Editor : Dr Vipul N Kapadia, D T Selvankumar, Tandel D. H.
Conflict of Interest : None declared
Acknowledgements/Funding : Author is thankful to Department of Plant Pathology, Regional Research Sub Station (Red & Laterite Zone), Sekhampur, P.O. Gadadharpur, Birbhum, 731129, Bidhan Chandra Krishi Viswavidyalaya, Mohanpur, 741252, West Bengal, India
Author Contribution : Sole author

Powdery mildew disease of grapes caused by Uncinulla necator is one of the most important diseases, which causes considerable yield loss in grapes production. In the absence of resistant cultivars, management of Powdery mildew disease has relied principally on application of synthetic fungicides. The present study evaluated the effects of fungicides on Powdery mildew disease of grapes and investigated the efficacy on the yield components and yield of grapes. The field experiment was laid in a randomized block design with five treatments and four replications in subtropical climatic condition of West Bengal at Regional Research Sub-Station (R & L Zone), Bidhan Chandra Krishi Viswavidyalaya, Sekhampur, Birbhum, West Bengal, India during 2018 and 2019. The highest disease control was in Picoxystrobin 22.52% SC @ 400 ml/ha (71.53% and 69.63%) followed by Azoxytrobin 23 % SC @ 500 ml/ha (61.85 % and 58.00 %), Kresoxim-methyl 44.3% SC @ 700 ml/ha (56.07 % and 46.57 %) and Hexaconazole 5% EC @ 1000 ml/ha (42.81 % and 35.03 %) on leaves and bunches, respectively at 15 days after 2nd spray. Highest marketable grapes yield was obtained by the spray of Picoxystrobin 22.52% SC @ 400 ml/ha as compared to other treatments

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