R. A. BALIKAIRAJU, ANAJI2019-06-102019-06-102007-01-20TH-8316http://krishikosh.egranth.ac.in/handle/1/5810107893The investigations were undertaken at the AlCRP on sorghum, RARS, Bijapur during rabi 2004-05 on loss estimation, varietal reaction and management of shoot bug. Natural infestation of shoot bug resulted in the yield loss of 11.16, 21.11 and 2.97% in grain yield, fodder yield and 1000-grain weight across the different dates of sowing. The unprotected plot recorded significantly higher sorghum stripe disease incidence as compared to protected ones (18.72% and 9.51%). Under graded level of infestation, the yield reduction ranged from 7,1 to 51.3% and 9.1 to 49.7% in grain and fodder yield with release of 5 to 30 first instar nymps per plant, respectively. The economic injury level of shoot bug was worked out to be 3.13 bugs per plant. Among the 80 genotypes screened against shoot bug the lines viz., 61611, 61612, CK 608, Swati, and RS 29 were promising by recording lower population (<2 shoot bugs/plant). Other entries recorded shoot bug population between 2 to 10 pennullThesis