Fig. 4

Representative GC-EAD traces of Z. cucurbitae females in response to C. pepo flower headspace volatiles. The top trace represents the FID chromatogram, while the three lower traces show antennal responses. Gray vertical lines connect antennal responses to their corresponding FID peaks. The time base was 2.00 min, scale: FID = 0.5 mV, EAD = 2 mV. RT refers to the retention time of the compounds.