Fig. 4

Effects of Buchnera-reduced (BR) infection on morphological characteristics of adults (in mm and mg) including length, width, and weight in adults of black cowpea aphids. Specimens of BCA were collected from alfalfa crops cultivated under (A–C) cold semi-arid (CS) climate, (D–F) humid subtropical (HS) climate, and (G–I) hot desert (HD) climate. The flag levels of significance (NS, **, and ***) indicate significant differences (t-test, NS P > 0.05; ** P < 0.05; *** P < 0.001).