Integrated management of leaf blight of Isabgol caused by Alternaria alternata
Abstract
The experiments were conducted at Department of Plant Pathology, Rajasthan College of Agriculture, Udaipur, in Rajasthan. Alternaria alternata was isolated from leaves of Isabgol and observed to be pathogenic under artificial conditions. Various fungicides, plants extracts and varietal screening were tested against the fungus. Among five fungicides Mancozeb was found most effective against Alternaria alternata in vitro and in vivo conditions followed by Copper oxychloride and Zineb. Relative efficacy of five plants extracts viz., Azadirachta indica, Allium sativum, Datura stramonium, Argemone maxicana and Lantana camara in different concentrations were studied by poisoned food technique. Among the five plant extracts, Allium sativam was found most effective followed by Neem leaves (Azadirachta indica). In general, higher concentrations of plant extract were more effective in reducing mycelial growth and sporulation as compared to lower concentrations. Among ten cultivars MIB-125, PB-7 and PB-62 showed moderate resistance to blight disease and local Isabgol variety gave high susceptible reaction to blight disease where none of cultivar was found completely free from disease.
Downloads
Issue
Section
License
For Authors
As soon as an article is accepted for publication, authors are requested to assign copyright of the article (or to grant exclusive publication and dissemination rights) to the publisher (Indian Phytopathlogical Society). This will ensure the widest possible protection and dissemination of information.
For Readers
While the advice and information in this journal is believed to be true and accurate at the date of its publication, the authors, the editors, nor the publisher can accept any legal responsibility for any errors or omissions that may have been made. The publisher makes no warranty, express or implied, with respect to the material contained herein.
All articles published in this journal are protected by copyright, which covers the exclusive rights to reproduce and distribute the article (e.g., as offprints), as well as all translation rights. No material published in this journal may be reproduced photographically or stored on microfilm, in electronic data bases, on video disks, etc., without first obtaining written permission from the publisher. The use of general descriptive names, trade names, trademarks, etc. in this publication, even if not specifically identified, implies that these names are protected by the relevant laws and regulations.