The Fall Armyworm (FAW), or Spodoptera frugiperda, represents a paradigm shift in tropical pest management. Since its catastrophic introduction to Sri Lanka in late 2018, it has evolved from a sporadic invader to a persistent, endemic threat. Unlike native pests, the FAW possesses a unique combination of high reproductive plasticity, a lack of diapause (no dormant period), and a "corn-strain" genetic dominance that makes it exceptionally efficient at colonizing maize monocult

Pests and diseases are some of the biggest threats to crop production worldwide.