The tropical climate of Indian sub-continent is conducive for many arthropod parasites to grow, multiply and disperse in wider geographical area. Over 20% of all emerging infectious diseases are due to arthropod-borne pathogens. Mosquito and fly menace are havoc in humans as well as in animals and also play significant role in spreading infectious diseases, causing annoyance, restlessness, off feed etc. which in turns leads to production losses. It is well known fact that, majority of livestock keeping farmers are resource poor, hence, any loss in livestock production like mortality and morbidity will have direct negative effect on their livelihood system. In tropical countries like India, parasitic infestation is one of the major threats to livestock production system. So, it’s very crucial to safeguard livestock from the bite and annoyance of mosquitoes and flies.