Short Communication: Feeding trial, biological, and demographic parameters of Spodoptera frugiperda (Lepidoptera: Noctuidae) on several Graminae species (laboratory trial scale)

Abstract. Sunari AAAAS, Supartha IW, Susila Utama IWEK, Yasa IWS, Yudha IKW. 2023. Short Communication: Feeding trial, biological, and demographic parameters of Spodoptera frugiperda (Lepidoptera: Noctuidae) on several Graminae species (laboratory trial scale). Biodiversitas 24: 3325-3331. The fall armyworm J.E Smith is a new pest that has entered Indonesia. ability the S. adaptation to types graminae plants important determine distribution potential hosts in field. adaptability was observed from two parameters, namely biology, demography, which were tested three plant family consisting hybrida variety corn, Jatiluwih local rice, sorghum. This research conducted May November 2022 at Integrated Pest Disease Management Laboratory (IPMLab), Faculty Agriculture, Udayana University. observation made bionomic parameters. Demographic determined by observing gross reproduction rate (GRR), net reproductive (R0), intrinsic increase (r), generation time (T), doubling (DT), fecundity frugiperda. results showed biology best hybrid corn with short duration larval life. survival chances obtained daily observations frugiperda, decreased day 32 sorghum plants. On other hand, rice plants, imago's chance started decrease 34 days old. In lower R0 r values higher T DT ??indicate are for grow develop.