Morphological development among peach, jujube, tea and cotton populations of Apolygus lucorum were investigated. The body length, body width, stylet length, head width and body weight were tested and compared among different host plants. There were significant differences in the body length, body width, stylet length and head width among different host plants. The body length, body width, stylet length and head width of cotton were significantly higher than those of other host plants. The adult body weight of the cotton was the largest, followed by tea, jujube and peach host plants. Meanwhile, there were significant differences in adults’ body weight of cotton and peach host plants. Different hosts had significant effects on the morphological development of Apolygus lucorum adults. Cotton was significantly beneficial form Apolygus lucorum adults development in these four host plants. |