Fig. 3.

Broccoli enhances the longevity of T. castaneum under normal physiological conditions. Kaplan–Meier survival curves demonstrate the increased longevity of beetles fed on a broccoli-supplemented diet when reared at a normal physiological temperature (32 °C) compared to beetles fed on a control diet. Beetles were reared on flour supplemented with 1 % lyophilized broccoli from the young adult stage onwards. **p < 0.01