Fig. 6 in Preference of Neoseiulus californicus (Acari: Phytoseiidae) for volatiles of Bt maize induced by multiple herbivory

Fig. 6. Projection to principal component analysis (PCA) based on the headspace composition of volatiles of conventional maize plants infested by Tetranychus urticae (C + Tu = •); conventional maize plants infested by Tetranychus urticae and Spodoptera frugiperda (C + Tu + Sf = +); Bt maize plants infested by T. urticae (Bt + Tu = N); Bt maize plants infested by T. urticae and S. frugiperda (Bt + Tu + Sf = *), using the first two principal components (Dim) with explained variance in brackets.