Survey and surveillance of early blight of tomato caused by Alternaria solani in Konkan region

A roving survey of early blight of tomato disease were carried out during Rabi season, 2008- 2009 at Thane, Raigad, Ratnagiri and Sindhudurg districts and per cent disease incidence was recorded ranged from 26.33 to 50.77 per cent .The mean incidence of early blight recorded was 40.97 per cent in Konkan region. The maximum per cent disease incidence was observed in Wada Tahsil in Thane district with 50.77 per cent and minimum per cent disease incidence in Goregaon Tahsil of Raigad districts with 26.33 per cent in Konkan.