Fig. 6

L. plantarum prevented oviposition avoidance towards Diaporthe FY. a Quantification of egg-laying avoidance to diet fermented with Diaporthe FY. Egg-laying preference was assayed using a two-choice chamber. Mated females were transferred to the chamber and allowed to lay eggs for 8 h. The number of eggs was counted on each half, and the oviposition preference was calculated. b Ovipositional avoidance towards metabolites of Diaporthe FY. The supernatant of liquid fly food was evenly distributed on the surface of halves in a dose-dependent manner. c L. plantarum reduced oviposition avoidance towards Diaporthe FY. d Oviposition preference for Diaporthe FY-treated diet that was previously inoculated with L. plantarum. The one-sample t-test was used to assess the mean deviance of each column from 0, n = 6–14; NS P > 0.05; * P < 0.05; ** P < 0.01; *** P < 0.001