Khan, M. Azeem; Iqbal, Muhammad; Ahmad, Iftikhar; … - In: The Pakistan Development Review 41 (2002) 4, pp. 683-698
At the inception of Pakistan in 1947, there was practically no plant protection service in the country and economic soundness of plant protection measures was not even realized for a long time. The use of chemicals as preventive measures to reduce losses by insects and diseases was almost...