alexa Biological and Chemical Resistance Inducers Approaches
ISSN: 2157-7471

Journal of Plant Pathology & Microbiology
Open Access

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Research Article

Biological and Chemical Resistance Inducers Approaches for Controlling Foliar Diseases of Some Vegetables under Protected Cultivation System

Abdel-Kader MM*, El-Mougy NS and Lashin SM

Department of Plant Pathology, National Research Centre, Giza, 12622, Egypt

*Corresponding Author:
Mokhtar M. Abdel-Kader
Department of Plant Pathology
National Research Centre, Egypt
E-mail: [email protected]

Received date: August 12, 2013; Accepted date: September 26, 2013; Published date: September 30, 2013

Citation: Abdel-Kader MM, El-Mougy NS, Lashin SM (2013) Biological and Chemical Resistance Inducers Approaches for Controlling Foliar Diseases of Some Vegetables under Protected Cultivation System. J Plant Pathol Microb 4:200. doi:10.4172/2157-7471.1000200

Copyright: © 2013 Abdel-Kader MM, 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.



Different alternative approaches of antagonistic bio-agents, Trichoderma harzianum, T. Viride, Bacillus subtilis, Pseudomonas flourescens and Saccharomyces cerevisiae and plant resistance inducers, Calcium chloride, Potassium monohydrogen phosphate, Potassium bicarbonate, Saccharin, Ascorbic acid, Chitosan and Humic & Folic acid (mixture) in addition to thyme oil were applied as plant spray to evaluate their efficacy against vegetables foliar diseases incidence was carried under open greenhouse conditions.
The recorded foliar diseases, i.e. Powdery, Downy mildews of Cucumber, Cantaloupe and Pepper as well as Early, Late blights of Tomato were significantly reduced at all treatments either alone or in combinations comparing with untreated plants. Application with either T. harzianum or B. subtilis showed significant reduction in diseases incidence comparing with the other applied bio-agents. The other bio-agent treatments, T. viride, P. fluorescens and S. cerevisiae recorded moderate reduction in this concern. Under artificial infestation the most significant reduction in foliar diseases incidence and severity of tested vegetables were recorded in combined treatments of combined chemical inducers and S. cerevisiae, i.e. (Chitosan+Thyme oil); (Chitosan+Saccharin); (Chitosan+Calcium chloride+S. cerevisiae); (Chitosan+Potassium monohydrogen phosphate); (Saccharin+Potassium monohydrogen phosphate); (Humic & folic+Thyme oil) and (Chitosan+S. cerevisiae) comparing with other applied treatments as well as untreated control.
The present review summarizes studies aimed to evaluate different control measures of fungicides alternatives approachs, e.g. some plant resistance inducers, essential oils and bio-control agents on the foliar diseases incidence of some vegetables under greenhouse and plastic house conditions. This work was carried out during a project supported by the Science and Technology Development Fund (STDF), Egypt.


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