Morphology and life cycle of Spodoptera frugiperda(J.E. Smith) (Lepidoptera: Noctuidae) with soybean leaf ( Glycine max[L.] Merr.) in the laboratory

Abstract

Abstract Soybean ( Glycine max [L.] Merr. ) is an important vegetable source of vegetable protein for the whole world. Wilis is one of the superior varieties in great demand among farmers. However, soybean production in recent years in Indonesia has declined. One of the causes is the presence of parasites which can cause losses both in quantity and quality. The fall armyworm (FAW), Spodoptera frugiperda (J. E. Smith) (Lepidoptera: Noctuidae) is a serious pest that can attack 353 host plants from 76 plant families and one of them is the Fabaceae family. This research was conducted at the laboratory and experimental farm of Hasanuddin University Faculty of Agriculture and took place from August to December 2020. The larvae were obtained from Sidenreng Rappang regency, Watang Pulu district. Insect was reared in the laboratory to produce eggs which are used to observe the life cycle of S. frugiperda with soybean leaves as food. Biological observations were made, including the duration of each stadium, and the shape and size of the egg until it becomes an adults. The results of this study showed that the larvae of S. frugiperda consisted of six instars. The mean duration of eggs to hatching was 1.8 days, the duration of the larval was 18.78 days, the duration of the pre-pupa was 1.61 days, the duration of the pupal was 10 days and the longevityis s 9.28 days for males adults and 13.73 days for females adults.

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