Cultural and morphological characteristics of Colletotrichum gloeosporioides (Penz.) Penz. and Sacc.causing anthracnose of cowpea

SUHASINI    SHEELAVANT; S. A.  ASHTAPUTRE; SHAMARAO   JAHAGIRDAR; S. K.  DESHPANDE

SUHASINI SHEELAVANT Department of Plant Pathology, College of Agriculture, University of Agricultural Sciences, Dharwad - 580 005, Karnataka, India
S. A. ASHTAPUTRE Department of Plant Pathology, College of Agriculture, University of Agricultural Sciences, Dharwad - 580 005, Karnataka, India
SHAMARAO JAHAGIRDAR Department of Plant Pathology, College of Agriculture, University of Agricultural Sciences, Dharwad - 580 005, Karnataka, India
S. K. DESHPANDE Department of Genetics and Plant Breeding, College of Agriculture, University of Agricultural Sciences, Dharwad - 580 005, Karnataka, India

Keywords: Colletotrichum gloeosporioides, Cowpea, Cultural studies, Mycelium, Potato dextrose agar

Abstract

Cowpea anthracnose caused by C. gloeosporioides is an important disease that causes considerable economiclosses to the farmers. The cultural studies of the pathogen on different solid media revealed that potato dextrose agar can berecommended to obtain good growth of the pathogen as it recorded maximum radial growth which is followed by oat mealagar, potato carrot agar and Sabouraud dextrose agar. The colour of the colony varied from white to different shades ofgreyish white on different media tested. Among the different media tested, potato dextrose agar showed cottony texture ofgrowth, aerial type of mycelium and irregular margins. Excellent sporulation was observed in potato dextrose agar.