Vol. 2 (1) : January-February 2011 issue
Green Farming Vol. 2 (1) : 91-93 (January-February, 2010) (New Series)
Studies on leaf blight of cowpea incited by Alternaria alternata(Fr.) Keissler
D.S. THAWARE1*, P.A. FUGRO2, J.J. KADAM3, S.V. MAGAR and S.C. RITE
Department of Plant Pathology, College of Agriculture, Dapoli, Ratnagiri - 415 712 (Maharashtra)
Designation : 1Professor, 2,3Assoc. Professor, *Correspondence
Subject : Plant Pathology, Nematology and Virology, Mushroom Cultivation
Paper No. :
Total Pages : 3
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Revised accepted :
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Citation :
D.S. THAWARE, P.A. FUGRO, J.J. KADAM, S.V. MAGAR and S.C. RITE. 2011. Studies on leaf blight of cowpea incited by Alternaria alternata (Fr.) Keissler. Green Farming Vol. 2 (1) : 91-93 (January-February, 2010) (New Series)
ABSTRACT
The colony of Alternaria alternata was circular, grayish black with whitish growth on the upper surface on PDA with profuse growth and sporulation. The good growth and sporulation of the test fungus was obtained on maltose as a source of carbon while ammonium nitrate was found to be good nitrogen source for growth of the test fungus. Among different fungicides tested in vitro, mancozeb (0.2 per cent) and propiconazole (0.05 per cent) completely inhibited the growth of the test fungus. In vitro screening of the plant extracts revealed that the bulb extract of garlic (Allium sativum) was most effective in inhibiting the growth of the test fungus followed by sadaphuli and glyricidia.
Key words :
Alternaria alternata, cowpea, leaf blight.
