Figure 3. Percent response of 732 O. nubilalis E race males to 2 blends, in the following order: O. furnacalis 2:1 Z/E blend (ACB, test 1), and then to the 1:99 Z/E O. nubilalis blend (ECB, test 2). Values are for 4 behaviors: taking flight, 150 cm; initiation of upwind flight, 140 cm; upwind flight to the 40 cm mark, and touching the source, 0 cm. For each behavior/distance from source, letters that differ between blends are significantly different (2; P < 0.05).