Kethusigamany, Nageswary
(POSTGRADUATE INSTITUTE OF AGRICULTURE of the UNIVERSITY OF PERADENIYA, SRI LANKA, 1987)
Biological studies of Spodoptera exigua (Armyworm) in tbo Northern
Province oi Sri Lanka, revealed that the pre-oviposition, oviposition,
incubation, larval stages, pre-pupal and the pupal periods lasted 1, 1,
1.25, 1.5 ...