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European Journal of Medicinal Plants, ISSN: 2231-0894,Vol.: 22, Issue.: 3


Evaluation of Phyto-extracts, Biological Agents and Chemicals against the Development of Alternaria brassicae in vitro and in vivo


M. K. Biswas1* and Tanmay Ghosh2

1Department of Plant Protection, Palli Siksha Bhavana, Visva-Bharari, Sriniketan, Birbhum, W.B., India.

2Department of Microbiology, Rabindra Mahavidyalaya, Champadanga, Hooghly, W.B., India.

Article Information


(1) Marcello Iriti, Professor, Plant Biology and Pathology, Department of Agricultural and Environmental Sciences, Milan State University, Italy.


(1) F. Solano, University of Murcia, Spain.

(2) Sobia Chohan, Bahauddin Zakariya University, Pakistan.

(3) Muhammad Ali, Kano University of Science and Technology, Nigeria.

Complete Peer review History: http://www.sciencedomain.org/review-history/23650


Alternaria leaf blight caused by Alternaria brassicae and Alternaria brassicola, is one of the most destructive diseases of mustard (Brassica  campestris, B. juncea and B.napus) in West Bengal, causing considerable damages to the crop. The experiment was conducted under in vitro and in vivo conditions to see the effect of bio-agents, plant extracts and chemicals (fungicide and SAR compound) against Alternaria brassicae. Maximum inhibition in mycelial growth (95.56%) was observed with Mancozeb 75% Wp followed by Lantana camera (80%), Salicylic acid (73.33%), Allium sativum (54.44%) and Zingiber officinale (17.78%) in comparison to control. Foliar spray with fungicide (Mancozeb 75% WP @ 0.2%) was found to be most effective in reducing disease severity (81,23%) and infection rate which increased the yield (77.23%) of mustard over untreated control. Among the plant extracts, Lantana camera was found to be excellent in controlling the  Alternaria blight infection in the field (71.92% reduction in disease severity and 68.18% increase in yield) in comparison to salicylic acid (SAR compound) and bio-agent (Trichoderma viride) 48.33% and 36.27% reduction in  disease severity  respectively.

Keywords :

Alternaria brassicae; mustard; salicylic acid; bio-agent; plant extracts; fungicide.

Full Article - PDF    Page 1-9

DOI : 10.9734/EJMP/2018/40412

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