EAG responses recorded from two-day old mated female NOW moth antennae. Dose dependence responses (N = 9) for compounds 6, 8, 9, and 12 at concentrations 10 µg/μl (≈10,000 ppm), 1 µg/μl (≈1,000 ppm), and 0.1 µg/μl (≈100 ppm). There were significantly higher responses for compounds 8, 9, and 12 as compared to the hexane controls at concentrations 10 µg/μl (P = 0.0001; Tukey's Multiple Comparison Test) and 1 µg/μl (P = 0.0001). EAG responses at concentration of 0.1 µg/μl were not significantly different (P>0.05) from hexane controls. Compound 6 did not show EAG activity (P>0.05). Inset Representative EAG traces of hexane control (H) and compound 9 (9) at 10 µg/μl. The solid line above the traces represents stimulus duration (500 ms). The time and voltage scales are shown at the bottom left of the graph.