Abstract
The studies on diversity of insect fauna and population dynamics of root borer in sugarcane were carried out for two crop seasons during 2017-18 and 2018-19 in U.S. Nagar, Uttarakhand, India. Root borer, Emmalocera depressella is spread extensively in all sugarcane growing areas of the country including Uttarakhand. The Survey and observation were conducted in sugarcane farmer’s fields both seeded and planted crops distributed over at four places of district U.S. Nagar during two consecutive years 2017-18 and 2018-19 with an objective to gather information of insect pest in this area towards developing survey schedule for the farmers to recommend control measures and to determine the population dynamics of sugarcane root borer in the months of March to till harvest of the crop. A total of one hundred canes from each places have been studied for the experimentation. The population reached its maximum in the month of May; however the peak activity recorded during both the first and second seasons, respectively. Thus the study exhibited that the peak activity of root borer was from AprilJune during 2017-18 and 2018-19 crop seasons, respectively.
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