Figure 1. Effect of stage of whitefly removal on percent T. vaporariorum (A) and B. tabaci (B) adult eclosion. Experimental T. vaporariorum or B. tabaci were removed from green bean leaves at the stage indicated and placed on moist filter paper. Control whiteflies (whiteflies that completed their life cycle on the leaf) were staged and their positions on the leaf were mapped. Adult eclosion for individual whiteflies in each stage was recorded. Each value represents the mean ± S.E. of at least four separate replicates; for each replicate a minimum of 20 whiteflies was examined. S. E. bars not shown were smaller than the size of the datum point. For Stage-2 experimental T. vaporariorum (Fig. 1B), 0% emerged. For each stage, the Student’s t-Test (α = 0.05) was used to determine if there was a significant difference between the experimental group (pink bar) and its respective control (blue bar). An asterisk indicates that there is a significant difference between the two groups.