Fig. 2. Infestation of maize plants by caterpillars of Spodoptera frugiperda (mean percentage of infested plants ± SEM) on (A) BTH+ and BTH treated plants and (B) on MeJA+
and MeJA treated plants. The dotted line indicates the average infestation rate over the six replicates and four treatments. The experiments were replicated six times over
time (reps 1 and 2 in June 2008 and reps 3–6 in February 2009). Data were analyzed with the general linear model (GLM).