Figure 2

Larval survival and development of western corn rootworm populations bioassayed on non-rootworm Bt and Cry34/35Ab1 maize in 2019. (a) Mean proportional survival (± SE), (b) mean head capsule width (± SE), and (c) mean fresh weight (± SE). Asterisks above Cry34/35Ab1 bars indicate significantly lower survival or development compared to the non-rootworm Bt hybrid within a population (Tukey’s multiplicity adjustment, p < 0.05). A ‘+’ within Cry34/35Ab1 bars indicates significantly greater survival or development on Cry34/35Ab1 maize relative to the susceptible laboratory control (Dunnett’s test, p < 0.05).