Figure 3: Average number of nymphs (±SE) produced by 12 M. pygmaeus (6 males and 6 females) in the presence (+WF) or absence (-WF) of whitefly prey on tomato plants grown under control light conditions (CL) or CL with supplemental far-red light (+FR) during 25 days. There was a significant effect of both the presence of prey (df = 1, F = 118.48, p = 0.008) and the light treatment (df = 1, F = 23.18, p = 0.038) on the total number of nymphs produced. There were no significant differences between experimental replicates (df = 2, F= 3.54, p = 0.358), nor was there an interaction effect between prey presence and light treatment (df = 1, F = 5.15, p = 0.150). Numbers in bars represent the averages. CL/-WF n = 15, CL/+WF n = 15, +FR/-WF n = 15, +FR/+WF n = 13.