Fig. 3
Damage by T. absoluta (A) and by N. tenuis (B, C) on tomato plants: A percentage of leaves attacked by T. absoluta per plant; B Number of necrotic rings per plant; C Percentage of aborted flowers per plant. ‘Mp10′ 10 initially introduced M. pygmaeus; ‘Mp15′ 15 initially introduced M. pygmaeus; ‘De’ D. errans present. Vertical dashed lines show the time periods used in statistical tests and coinciding with estimated generation times of the insect species causing plant damage. Different letters show significant differences between treatments or groups of treatments within each time period. N = 40 replicates per treatment and per week (insects counted on 10 plants per tunnel with four tunnels per treatment)