P.C. Singh1*, Ramesh Singh2, P.P. Tripathi3 and A.K. Singh4
1,2Department of Plant Pathology , TDPG College, Jaunpur 222002
3Krishi Vigyan Kendra, East Kameng 790102
4Krishi Vigyan Kendra, Tirap 792129
Received-06.02.2018, Revised-20.02.2018
Abstract: The environmental factor play very important role in the development of the plant disease. Alternaria blight of tomato during two year is observed 2014-15 and 2015-16 crop season. The disease appears in the 3rd week of November in both the year. Maximum disease incidence 40.5% was observed in the 4th week of January 2014-15 and 2nd week of January 2015-16 crop season. When the average temperature and relative humidity 14.1 and 84.2% on the average disease incidence was observed 3rd week of January 2014-15 and 2nd week of January 2015-16 crop.
Keywords: Environmental factor, Alternative, Tomato
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