Biology of fall armyworm Adult FAW is noctuid and feeds for a period which extends from shortly after dusk to two hours after sunset depending on temperature and time of the cropping season (Luginbill, 1928). Previous research findings indicate that FAW is always active in the warm and humid conditions (Sparks, 1979). The adult starts movement in the evening towards the host plant for feeding, oviposition and mating (Luginbill, 1928). Virgin female moths begin signaling male moths for mating by emitting windborne pheromone to portray their readiness for mating (Luginbill, 1928). The female undergoes pre-oviposition period ranging between three to four days (Luginbill, 1928). Active oviposition starts from the initial four to five days of life (Sparks, 1979). Females oviposit on the underside of the leaves. However, in the event of high FAW population density, oviposition can be on any plant parts or plant debris (Luginbill, 1928). Oviposition lasts for a period of three weeks (Lug