Study on Population Dynamics of Sugarcane Leaf Hopper in Udham Singh Nagar, Uttarakhand, India

The studies on diversity of insect fauna and population dynamics of leaf hopper in sugarcane were carried out for two crop seasons during 2017-18 and 2018-19 in U.S. Nagar, Uttarakhand, India. Leaf hopper, Pyrilla perpusilla is distributed extensively in most of sugarcane farming area of the country including Uttarakhand. The Survey and observations were conducted in sugarcane farmer’s field both seeded and planted crop distributed over at four place of district U.S. Nagar with an objective to gather information of insect pest in this area towards developing survey scheduled for the farmers to recommend control to determine the population dynamics of sugarcane leaf hopper, P. perpusilla in the month of March till harvest of the crops. A total of one hundred canes from each place have been studied for the experimentation. The infestation reached its highest during 2nd half of August and 2nd week of September. Thus, the study exhibited that the peak activity of leaf hopper, P. perpusilla was from March to October during 2017-18 and 2018-19 crop seasons, respectively.