Spotted-winged drosophila, Drosophila suzukii Matsumura (Diptera: Drosophilidae), has become a significant pest of small and stone fruit. Unlike most species, it tends to infest healthy, intact ripe fruit, as opposed rotting or overripe fruit (Mitsui et al. 2006, Popul. Ecol. 48:233–237; Asplen 2015, J. Pest Sci. 88:469–494). drosophila adults are typically detected in the field using baited tr...