DOI: 10.36347/sjavs.2017.v04i10.004

Pages: 414-417

Study was conducted to ascertain the effect of weather i.e. temperature on fruit borer, Heicoverpa armigera (Hub.) activity, major insect-pest of Tomato in northern plains of India. Initial fruit infestation by H. armigera was recorded in November in the years of study i.e. 2012-13 and 2013-14 which declined during December-January and touched the peak i.e. 11.93 and 14.78 percent in the month of March. The correlation of H. armigera fruit damage (%) with maximum temperature was strongly positive (r= 0.5082 and 0.5393) and similarly with minimum temperature (r= 0.5880 and 0.6866) as well.