International Journal of Plant Protection

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Efficacy of Bioagents and Plant Extract against Alternaria porri Causing Purple Blotch of Onion


Affiliations
1 Department of Plant Pathology, College of Agriculture (V.N.M.A.U.), Latur (M.S.), India
     

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The bioagent T. harzarium was found most effective in controlling the pathogen. Lowest disease severity (37.67%) was recorded in the spray treatment of T. harzarium. It was followed by T. viride and P. fluorescens, B. subtilis. Among the plant extract 5 per cent neem seed kernel extract gave maximum control of pathogen i.e. 44.24 per cent over control, followed by Followed by Mentha arvensis, Allium sativum, Zingiber officinale, Vitex negundo. The fungicide Mancozeb was at found at par with extract of NSK and Mentha arvensis.

Keywords

Onion, Purple Blotch of Onion, Bioagents, Plant Extract.
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  • Efficacy of Bioagents and Plant Extract against Alternaria porri Causing Purple Blotch of Onion

Abstract Views: 336  |  PDF Views: 1

Authors

P. R. Brahmane
Department of Plant Pathology, College of Agriculture (V.N.M.A.U.), Latur (M.S.), India
B. P. Dandnaik
Department of Plant Pathology, College of Agriculture (V.N.M.A.U.), Latur (M.S.), India
P. B. Abhang
Department of Plant Pathology, College of Agriculture (V.N.M.A.U.), Latur (M.S.), India

Abstract


The bioagent T. harzarium was found most effective in controlling the pathogen. Lowest disease severity (37.67%) was recorded in the spray treatment of T. harzarium. It was followed by T. viride and P. fluorescens, B. subtilis. Among the plant extract 5 per cent neem seed kernel extract gave maximum control of pathogen i.e. 44.24 per cent over control, followed by Followed by Mentha arvensis, Allium sativum, Zingiber officinale, Vitex negundo. The fungicide Mancozeb was at found at par with extract of NSK and Mentha arvensis.

Keywords


Onion, Purple Blotch of Onion, Bioagents, Plant Extract.

References