236762.fig.004a
(a)
236762.fig.004b
(b)
236762.fig.004c
(c)
Figure 4: Representative E-nose sensor response patterns (smellprints) based on a 15 sec sample of headspace VOC emissions from unexposed (control) cotton bolls (a), or bolls exposed to Euschistus servus (b), and Nezara viridula (c) following 3 d of feeding damage. 1: baseline purge; 2: sample draw; 3: air purge; 4: sample purge.