Abstract
Significant yield reduction and effect on almost every aspect of the plants by insect pests have been a mega problem in agricultural crops. Scientist tackle with many challenges to develop highly efficient techniques either through conventional breeding or modern genetic engineering to understand the mechanism of resistance and its application for benefit of human kind. Antibiosis, antixenosis and tolerance are the resistance mechanisms which have been developed for successful control of economically important insect pests in corn. Plant morphology and allelochemicals, induced resistance, callus tissue culture and genetic transformation were used as major tools to advance resistance by corn breeders. Insect pest resistant corn has been attributed for social, economical as well as environmental benefits. However, outcome of these achievements are not reflected due to low use of insect resistant corn by farmers in many developing countries of the world.
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