Integrated management strategies for fuscous blight and floury leaf spot of rajmash
216 / 104
Authors
-
KALYAN K. MONDAL
Keywords:
Phaseolus vulgaris, Pseudomonas fluorescens, phylloplane, biocontrolAbstract
Pseudomonas fluorescens strain RPB14, a dominant member of the rajmash phylloplane, showed potential biocontrol activity against major diseases of rajmash bean (Phaseolus vulgaris) including fuscous blight (Xanthomonas axonopodis pv. phaseoli var fuscans) and floury leaf spot (Ramularia phaseoli) both in vitro and under field conditions. The integrated disease management strategies involving this strain suppressed the diseases significantly and thereby improving the plant health of the rajmash (cv. Baspa). Two foliar applications of the strain RPB14, 1st at seedling (107 cfu ml-1) and 2nd at flowering (106 cfu ml-1), followed by a single spray of carbendazim 50WP (0.05%) at pod developmental stage was best in protecting both the diseases by 59.6 (floury leaf spot) and 51 per cent (fuscous blight) as well as in increasing the seed yield by 81.3 per cent over control. The strain RPB14 could colonize on rajmash both in presence and absence of pathogens. The present study reveals that the strain PRB14 could serve as a potential input in the integrated disease management approaches for rajmash.
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.