alexa Effect of Different Doses of Fungicide (Mancozeb) against Alternaria Leaf Blight of Tomato in Tunnel | OMICS International
ISSN: 2157-7471

Journal of Plant Pathology & Microbiology
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Research Article

Effect of Different Doses of Fungicide (Mancozeb) against Alternaria Leaf Blight of Tomato in Tunnel

AS Gondal1*, M Ijaz2, K Riaz1 and AR Khan3

1Department of Plant Pathology, University of Agriculture, Faisalabad, Pakistan

2Barani Agricultural Research Institute, Chakwal, Pakistan

3Department of Plant Pathology, King Saud University, Saudi Arabia

*Corresponding Author:
AS Gondal
Department of Plant Pathology, University of Agriculture
Faisalabad, Pakistan
E-mail: [email protected]

Received date: June 13, 2012; Accepted date: July 26, 2012; Published date: July 28, 2012

Citation: Gondal AS, Ijaz M, Riaz K, Khan AR (2012) Effect of Different Doses of Fungicide (Mancozeb) against Alternaria Leaf Blight of Tomato in Tunnel. J Plant Pathol Microb 3:125. doi:10.4172/2157-7471.1000125

Copyright: © 2012 Gondal AS, 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.

Abstract

Tomato (Lycopersicon esculentum Mill.) is an important commercial vegetable of the world. Tomato cultivars cultivated in Pakistan have low level of genetic resistance to Alternaria leaf blight disease. Farmers, in pursuance of high yield are inclined to cultivate some varieties which may be less resistant to the disease and rely on fungicide applications for the control of Alternaria solani, the casual organism of Alternaria blight of tomato. Five tomato varieties (Litah545, Litah514, Eurica, Ti-166 and Astra) were sown in five replications with one standard check in tunnel. Different doses of mancozeb (4 g/L, 8 g/L, 12 g/L and 16 g/L of water) were applied after 7 days intervals. Disease data was recorded after ten days interval from flowering stage to onward. Average yield of each variety was calculated after ten pickings. All fungicide doses reduce the disease severity as compared to untreated check. The highest reduction in the disease was achieved by applying mancozeb 12 g/L of water at an interval of 7, 14, 21 and 28 days. The yield of Litah545 and Litah514 give higher yield as compared to Eurica, Ti-166 and Astra. Overall results revealed that weekly sprays of mancozeb at 12 g/L of water were cost effective and eco-friendly for the management of Alternaria blight of tomato.

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