(1). Adults of species belonging to Miridae (70.5%), Pentatomidae (16.4%), Rhopalidae (7.96%), Lygaeidae (4.96%) and Scutelleridae (0.069%) were determined in whole sampling sites and all of the canola varieties. Additionally, nymphs belonging to Miridae (79.7%), Pentatomidae (19.4%) and Lygaeidae (0.8%) families were identified. Miridae was the highest followed by Pentatomidae, Rhopalidae and Lygaeidae; Scutelleridae was the lowest in the whole sampled areas and all canola varieties. Exolygus gemallatus (472), E. rugulipennis (254) and A. lineolatus (246) belonging to Miridae had the highest population densities, especially increasing after the flower stage of canola and reaching the maximum levels at the pod stage.