**Department of Statistics
Department of Entomology Sugarcane Research Institute, Rajendra Agricultural University, Bihar, Pusa, Samastipur-848 125, India.
*Corresponding author's E-mail: harichandento@gmail.com
Online published on 17 May, 2013.
The relationship between population of insect and abiotic factors showed significant positive correlation with high maximum and minimum temperature, as the temperature increased the population of the insect also increased during primary and secondary infestation in sugarcane.
Population, Chilo tumidicostalis, Primary and Secondary infestation, Sugarcane, Abotic factor