ISSN: 0973-7510

E-ISSN: 2581-690X

Open Access

M.V. Hareesh1, R. Ganesha Naik1, K. Jayalakshmi1, T. Basavaraj Naik2 and S. Pradeep3

1Department of Plant Pathology, College of Agriculture, University of Agricultural and Horticultural Sciences, Shivamogga – 577 225, India.

2Agricultural and Horticultural Resserch Station, Bavikere, University of Agriculturla and Horticultural Sciences, Shivamogga – 577 144, India.

3Organic Farming Research Centre, University of Agricultural and Horticultural Sciences, Shivamogga – 577 225, India.
J Pure Appl Microbiol. 2016;10(4):3105-3109
https://doi.org/10.22207/JPAM.10.4.85 | © The Author(s). 2016
Received: 16/08/2016 | Accepted: 04/10/2016 | Published: 31/12/2016
Abstract

Powdery mildew of chilli incited by Leveillula taurica (Lev.) Arn. is a devastating disease of chilli. In the present investigation, management of Powdery mildew disease was undertaken during 2015-16 by the application of  fungicides, bioagents and botanicals under field conditions. Among the twelve treatments, Myclobutanil (0.1 %) spray was found most effective in reducing the disease severity (PDI 17.37) followed by Triadimefon (PDI 20.70) and Hexaconazole (PDI 23.75) compared to control (PDI 88.24) respectively. The bioagents, Pseudomonas fluorescens (PDI 61.14) and Trichoderma harzianum (PDI 63.79) and the plant extracts viz., Azardiracta indica (PDI 62.56) and Allium sativa L. (PDI 63.54) were found less effective in reducing the disease severity as compared to fungicidal treatments respectively. Further, Myclobutanil and Triadimefon recorded higher dry chilli yield of  12.72 and12.27 q/ha. The highest cost: benefit ratio  was obtained in Myclobutanil (1:2.43) sprayed plots  followed by Triadimefon (1:2.39) respectively.

Keywords

Severity, Leveillula taurica, Bioagents, Plant extracts, fungicides

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© The Author(s) 2016. Open Access. This article is distributed under the terms of the Creative Commons Attribution 4.0 International License which permits unrestricted use, sharing, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.