Prabhu C., GanigerBASAVARAJ N., HADIMANI2020-07-242020-07-242019-07-30Th-12297http://krishikosh.egranth.ac.in/handle/1/5810149736The study on armyworms and cutworms was carried out at UAS, GKVK, Bengaluru. A survey was undertaken to assess the incidence of armyworms and cutworms on maize, chilli, soybean, sunflower, castor, potato and ginger in seven districts viz., Chikkaballapur, Bengaluru Rural, Bengaluru Urban, Hassan, Mandya, Mysuru and Tumkur during Kharif and Rabi in 2018-19. Among all the surveyed locations, high incidence (77.26 %) of fall armyworm was observed on maize in Tumkur district. Among the crop surveyed (chilli, soyabean, sunflower and castor), high incidence (86.66%) of Spodoptera litura have recorded in Bengaluru North district. Incidence of Agrotis segetum has 7.6 per cent on potato in Hassan. During the study 259 specimens were collected and examined which represented 13 species, four genera belonging to three subfamilies viz., Xyleninae, Hadenine and Noctuinae. Subfamily Xyleninae has represented by six species under the genus, Spodoptera viz., S. exigua, S. litura, S. mauritia, S. exempta, S. frugiperda and S. pecten. Subfamily Hadeninae has represented by four species belongs to two genera. The genus Mythimna had two species viz., M. separata and M. reversa and the genus Leucania had two species viz., L. loreyi and L. roseilinea. Subfamily Noctuinae represented by three species under the genus, Agrotis viz., A. ipsilon, A. segetum and A. spinifera. These species were distinguished based on male genitalia characters viz., shape and structure of uncus, tegumen, vinculum, saccus, valvae, juxta, aedeagus and vesica. Description of each species is provided along with keys for their identification.ennullThesis