Figure 4
From: Elevated O3 enhances the attraction of whitefly-infested tomato plants to Encarsia formosa

Effects of elevated O3 levels and whitefly infestation after three weeks on the behavioural responses of E. formosa to the two host tomato genotypes (A). Effects of the tomato genotypes on the behavioural responses of E. formosa after three weeks under four treatments (B). X2 test was used for differences between the numbers of E. Formosa in each arm (*, P < 0.05; **, P < 0.01; ns, non significant).