Fig. 1.

Mean relative consumption (±SE) by (a) Deroceras reticulatum (n = 12); (b) Arion rufus/ater (n = 12) and (c) Arion fuscus/subfuscus (n = 12) as well as (d) the combined mean preference rank (±SE) of all three slug species (n = 36) on leaf discs of Solanum dulcamara accessions that were either left undamaged (control; dark grey bars) or induced by feeding damage of D. reticulatum (72 hr of feeding followed by 24 hr relaxation, light grey bars). Asterisks indicate a significant treatment effect according to Wilcoxon Signed Ranks test with Bonferroni correction for multiple comparisons (** P < 0.01)