Pheromone Production, Attraction, and Interspecific Inhibition among Four Species of Ips Bark Beetles in the Southeastern USA
Figure 6
Percentage trap-catches in a subtractive and additive field bioassay of I. pini-bait: (a) I. pini (b) I. avulsus. (for bait information, see Table 3). ■ females; □ males. Bars with same letter are not significantly different. ; total trap catches: I.pini 602 ♀♀, 296 ♂♂; I. avulsus 7,000 ♀♀ + ♂♂.
