Effective Management of Colletotrichum Dematium Causing Leaf Blight of Safed Musli

Author(s): Y. S. Banginwar, S. T. Ingle and Y. L. Kshirsagar

Leaf blight caused by Colletotrichum dematium is one of the serious diseases which causes quantitative as well as qualitative losses. Effect of various diseases management tools were tested as a part of suitable option for managements of leaf blight of safed musli. Eight fungicides viz., propiconazole (0.1%), mancozeb (0.25%), penconazole (0.1%), carbendazim (0.1%), copper hydroxide (0.2%), curzate M8 (0.2%), chlorothalonil (0.2%), thiophanate M (0.2%) and seven botanicals viz., Bael (Aegle marmelos), Ghaneri (Lantena camera), Karanj (Pongamia pinnata), Kanher (Nerium oleander), Mehandi (Lawsonia innermis), Nilgiri (Eucalyptus spp.) and Neem (Azadirachta Mica) tested at 5 and 10 percent concentration, respectively. Among fungicides propiconazole and penconazole showing 100 percent inhibition as against control. Among botanicals at 5 and 10 percent concentration the extracts of Eucalyptus spp. showed maximum growth inhibition (78.90%, 84.07%) followed by Aegle marmelos (77.04%, 82.47%), respectively. The Lawsonia innermis was found least effective against test pathogen at both level of concentrations.

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