The present invention relates to a method of controlling a population of pests by way of using radiation techniques. The method comprises collecting a predetermined quantity of pests and treating the said pests with a plurality of radiations at predetermined doses and time to induce sterility. The pests include plurality of species of coleopteran beetles which further include Raphidopalpa faveicollis, Alphilobius diaperinus and Hoplocerambyx spinicornis species. The radiations include UV radiation, X-ray radiation and CO60 radiation. The radiations induce sterility in said pests by hampering reproductive cells of said pests which hinder their growth.
