Fig 3. Food preference of Tenebrio molitor for wheat grains colonized with Fusarium proliferatum.

Mealworm beetles T. molitor were offered wheat grains colonized with F. proliferatum and uninfected grains. After 20 min, beetles feeding on grains with F. proliferatum were counted and the count was expressed as a percentage of all beetles in the arena. In the control, both food choices consisted of uninfected grains. The preference of the beetles for infected grains was statistically significant (chi-square test, Χ² = 59.3, p < 0.001).