Seasonal abundance of Helicoverpa armigera Hübner and Scirpophaga incertulus Walker in Tarai of Uttarakhand

ARVIND KUMAR, KULDEEP SHARMA, SUNIL KUMAR and M.A.KHAN

Biological Control Laboratory,

Department of Entomology,

G. B. Pant University of Agriculture and Technology,

Pantnagar- 263145 (U. S. Nagar, Uttarakhand)

ABSTRACT

  Experiments on seasonal abundance of Scirpophaga incertulas Walker and Helicoverpa armigera Hübner based on pheromone trap catch were conducted during 2005-07. The number of H. armigera moths catch was higher during 2005-06 than 2006-07 and on the basis of data of both the years; the most favorable was period was from 23^rd to 26^th standard week. During the year 2006-07 number of Scirpophaga incertulas moth catches was higher than 2005-06 and the most favorable period was observed from 36^th to 42^nd standard week