author(s)
Repalle Naganna, Jethva DM, Bhut JB, Pankaj S Wadaskar and Akash Kachot

abstract
The agricultural economy in India is vulnerable to threat from many potential bio weapons mainly invasive pests species. Invasive pest species are exotic, introduced, foreign, non-indigenous or non- native, is one that has been introduced by humans intentionally or otherwise through human agency or accidentally from one region to another. Invasive pest species have potential to rapidly established and spread in a new area cause major crop loss and can adversely affect food security. The spread of Invasive pest species is now recognized as one of the greatest threats to the biodiversity and economic well being of the country. The numbers of invasive insect pests species are introduced in India last 20th and 21st century by unintentionally or accidentally, recently, the fall armyworm, Spodoptera frugiperda have been reported in India. It was first noticed in mid-May 2018 in Shivamogga, Karnataka. The recent studies in India reported that the infestation of fall armyworm ranged from 2 to 35 per cent in maize. The new invasive pest has been spreading rapidly; the adult moths of FAW are highly migratory, capable of travelling up 500 km in a single season to find oviposition sites and capacity to fly over 100 km per night. It has potential threat to agriculture crop production as well as Indian economy.