Vol. 11, Issue 7 (2022)

Author(s):
MP Tamilmalar, J Sheela, N Rajinimala, KG Sabarinathan and EB Ebenezar

Abstract:
Colletotrichum is one of the major plant pathogen causing anthracnose disease in variety of plant species. Anthracnose is a devastating plant disease that can cause cucurbitaceous crop losses up to 30 per cent. Survey was conducted in major cucumber growing districts of Tamil Nadu viz., Thoothukudi, Tirunelveli, Tenkasi, Kanyakumari and Namakkal. The maximum disease incidence was recorded in Marukalkurichi village of Tirunelveli district (70.37 PDI) and the minimum disease incidence was recorded in Serukalai village of Namakkal district (40.74 PDI). Samples were collected from the surveyed areas, from which nine isolates of Colletotrichum lagenarium were isolated and Cl I2 from Marukalkurichi village sample was found to be virulent.