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International Journal of Current Microbiology and Applied Sciences (IJCMAS)
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Original Research Articles Volume : 15, Issue : 5, May, 2026

PRINT ISSN : 2319-7692
Online ISSN : 2319-7706
Issues : 12 per year
Publisher : Excellent Publishers
Email : editorijcmas@gmail.com
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Editor-in-chief: Dr.M.Prakash
Index Copernicus ICV 2018: 95.39
NAAS RATING 2020: 5.38

Int.J.Curr.Microbiol.App.Sci.2026.15(5) : 112-120
DOI : https://doi.org/10.20546/ijcmas.2026.1505.015


Management Strategies using SAR Activators and Fungicides against Cercospora Leaf Spot of Green Gram Caused by Cercospora canescens

Manisha Khichar1*, Shailesh Godika1, Harshdeep Singh2, Pinki1, Vijay Kumar Kasotiya3 and Ravi Regar1
1Department of Plant Pathology, SKN College of Agriculture, Jobner, Jaipur (Raj.) 303329, India 2Department of Plant Pathology, College of Agriculture, Swami Keshwanand Rajasthan Agricultural University, Bikaner (Raj.) 334006, India 3Division of Plant Pathology, ICAR- Indian Agricultural Research Institute, New Delhi, 110012, India
*Corresponding author
Abstract:

Green gram (Vigna radiata (L.) Wilczek) is an important pulse crop valued for its short duration, adaptability, nitrogen-fixing ability and high nutritional content. The productivity of green gram is significantly constrained by fungal diseases, particularly Cercospora leaf spot caused by Cercospora canescens. Seven fungicides were evaluated in vitro at 50, 100 and 200 ppm using the poisoned food technique. Under field conditions, a single spray of SAR activators (at respective concentrations) was applied at 25 DAS in artificially inoculated plots, while fungicides were sprayed at the onset of disease symptoms. All seven SAR activators reduced Cercospora leaf spot severity, with salicylic acid (200 ppm) most effective (25.20% intensity and 48.78% reduction), followed by isonicotinic acid. In vitro conditions metiram + pyraclostrobin showed maximum inhibition of Cercospora canescens (up to 100%), while copper hydroxide was the least effective. Field application of metiram + pyraclostrobin (0.10%) resulted in the lowest disease intensity (8.10%), confirming the superiority of combination fungicides. The findings of the present study will support the development of an integrated and sustainable management strategy for Cercospora leaf spot of green gram using SAR activators and fungicides.


Keywords: Cercospora canescens, Fungicides, Green gram, Salicylic acid, SAR activators


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How to cite this article:

Manisha Khichar, Shailesh Godika, Harshdeep Singh, Pinki, Vijay Kumar Kasotiya and Ravi Regar. 2026. Management Strategies using SAR Activators and Fungicides against Cercospora Leaf Spot of Green Gram Caused by Cercospora canescens. Int.J.Curr.Microbiol.App.Sci. 15(5): 112-120 doi: https://doi.org/10.20546/ijcmas.2026.1505.015
Copyright: This is an Open Access article distributed under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike license

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