Division of Entomology, Central Potato Research Institute, Simla (HP)
*Present address Department of Zoology, Gauhati University, Gauhati, ASSAM.
**Present address Entomology Department, Central Plant Protection Training Institute, Hyd-30.
Aphid surveys made in Jammu and Kashmir during the years 1972, 1973 and 1974 reveals that at most of the places population of aphid vectors remains below the critical level throughout the crop season and there is good possibility of growing healthy seed crops in these areas.