author(s)
Tamin, AS Kotasthane and Vivekanand Uraiha

abstract
The genus Colletotrichum includes a many number of plant pathogens, causing diseases of a wide range, variety of woody and herbaceous plants. On the host reddish brown spot appears and later they turn black. On infected pods, acervulli (fruiting bodies) resemble small pin cushions surrounded by setae. Single spore isolation of 10 different selected sample i.e. anthracnose of pigeon pea, leaf spot of turmeric, bean anthracnose, anthracnose of dragon fruit, chilli anthracnose, anthracnose of mungbean, anthracnose of bellpeper, anthracnose of cowpea, fruit anthracnose of brinjal and pod blight of soybean. Morphological variability studies of 10 different host specific isolates of Colletotrichum spp., conidial length and breadth of Colletotrichum spp. ranged between 15.95 - 27.00 X 2.50-4.84 μm and setae size varied from 140.75 -249.21 X 4.31-5.96 μm. Out of 10 isolates, isolate C3 (bean) are self induce perithecia. Premature and mature perithecia embedded on surface of PDA agar media plate, generally formed in cluster and sometimes individual. After maturation, outer layer cells of cell wall of perithecia become tough and dark in colour.