alexa Management of the Black Mould Disease of Onion
ISSN: 2157-7471

Journal of Plant Pathology & Microbiology
Open Access

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Research Article

Management of the Black Mould Disease of Onion

Renu Gupta, MK Khokhar* and Ram Lal

Department of Plant Pathology, SKN College of Agriculture, RAU, Jobner - 303329, India

*Corresponding Author:
MK Khokhar
Department of Plant Pathology
SKN College of Agriculture
RAU, Jobner - 303329, India
E-mail: [email protected]

Received date: August 20, 2012; Accepted date: September 17, 2012; Published date: September 20, 2012

Citation: Gupta R, Khokhar MK, Lal R (2012) Management of the Black Mould Disease of Onion. J Plant Pathol Microb 3:133. doi:10.4172/2157-7471.1000133

Copyright: © 2012 Gupta R, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.



Samples of onion seeds were collected from farmer’s houses to manage the seed mycoflora of onion through fungicides, plant extracts and bioagent seed treatments. Amongst fungicides used as seed treatment, in vitro Bavistin (Carbendazim 50% WP, 2.0%) proved to be most effective against Aspergillus niger followed by Thiram (80% WP, 2.5%), Captan (50% WP, 2.5%), Indofil M-45 (50% WP, 2.5%) and Topsin M (75% WP, 2.5%) in improving seed germination and vigour index, by reducing pre- and post emergence mortality and number of seedlings showing symptoms. Similarly, among bioagents and plant leaf extract used, Trichoderma viride (5.0 ml (108 cfu/ml)/10 g seeds) followed by Trichoderma pseudokoningii (5.0 ml (108 cfu/ml)/10 g seeds) and Safeda (5.0 ml/10 g seeds) followed by neem leaf extracts (5.0 ml/10 g seeds) proved to be effective in improving seed germination and vigour index, by reducing pre- and post emergence mortality and number of seedlings showing symptoms.


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