Pheromone Production, Attraction, and Interspecific Inhibition among Four Species of Ips Bark Beetles in the Southeastern USA
Figure 3
Percentage trap catches in a subtractive and additive field bioassay of I. grandicollis-bait: (a) I. grandicollis and (b) I. avulses, (for bait information, see Table 3). ■ females; □ males. Bars with same letter are not significantly different. ; total trap catches: I. grandicollis 363 ♀♀, 235 ♂♂; I. avulsus 341 ♀♀, 229 ♂♂.
