Figure 1

Response of Xyleborus bispinatus to methyl salicylate or verbenone at two loading dosages versus untreated clean air control. Interior graphs show response to methyl salicylate at two rates: 100 μg (A) and 10 μg (B) and verbenone at two rates: 100 μg (C) and 10 μg (D). Bars and error bars denote mean number of respondents and standard error respectively. Mean (±SEM) number of beetles without an asterisk did not differ significantly (α = 0.05).