Climate change and global warming are of great concern to overall world. Insects and plants are affected by climate change and typically susceptible to new environmental factors i.e. rise in temperatures, greenhouse effect and changes in rainfall patterns over the seasons. Each additional degree of temperature rise could cause yield losses from insect pests to increase by a further 10-25%.The relationships between plants and insects are thus changed with significant consequences for food security and natural ecosystems. They can result in an expansion of their geographic distribution, increased survival during overwintering, increased number of generations, altered synchrony between plants and pests, altered interspecific interaction, increased risk of invasion by alien pest species, increased incidence of insect-transmitted plant diseases. As a result, there is a serious risk of crop economic losses as well as a challenge to human food security. As a major driver of pest population dynamics, climate change will require adaptive management strategies to deal with the changing status of pests. Several priorities can be identified for future research on the effects of climatic changes on agricultural insect pests and pest management tactics.