236762.fig.003a
(a)
236762.fig.003b
(b)
236762.fig.003c
(c)
236762.fig.003d
(d)
Figure 3: Principal components plot of E-nose sensor responses to headspace VOC emissions from unexposed cotton bolls (solid ellipsoids) and bolls exposed to Nezara viridula (dashed ellipsoids) after 24 (a), 48 (b), 72 (c), and 96 (d) hr of feeding.