A study was performed over a time of one year to assess the incidence of root-knot nematode disease on sorghum crops in five selected localities of Telangana region. Our study shows that sorghum crops grown in the selected localities were moderately infested with root-knot nematodes. Maximum frequency of disease occurrence in which almost all the roots have knot-like appearance (≤45%) was reported from Ranagareddy area. Other localities were also having the significant infestations. To access the damage caused by root-knot nematodes in sorghum crop, Nematode gall index or its egg-mass index were calculated and these were found in the range of 1-4. Sampled crop showed the considerable presence of mixed population of root knot nematode. This study indicates that the root knot nematodes (Melioidogyne spp) are a frequently occurring population in sorghum field infested with root-knot disease.
