Pheromone Production, Attraction, and Interspecific Inhibition among Four Species of Ips Bark Beetles in the Southeastern USA
Figure 5
Percentage trap catches in a subtractive and additive field bioassay of I. calligraphus-bait: (a) I. calligraphus, and (b) I. avulsus. (for bait information, see Table 3). ■ females; □ males. Bars with same letter are not significantly different. ; total trap catches: I. calligraphus 523 ♀♀, 378 ♂♂; I. avulsus 225 ♀♀, 183♂♂.
