Bark Beetles, Pityogenes bidentatus, Orienting to Aggregation Pheromone Avoid Conifer Monoterpene Odors When Flying but Not When Walking
Table 3
Percent of walking Pityogenes bidentatus females and males responding in a laboratory olfactometer (21–23 May 2000) to conifer monoterpenes and its aggregation pheromone components (G1 = grandisol, cV = S-cis-verbenol).
Chemicalsa
Percent respondingb
95% B. C. L.c
N
Females
Diethyl ether control
10.0a
4.0–23.1
40
A = G1 + cV at 5 × 10-10 g/μL
25.0ab
14.2–40.2
40
B = G1 + cV at 5 × 10-9 g/μL
35.0b
22.1–50.5
40
G1 + cV at 5 × 10-8 g/μL
42.5bc
28.5–57.8
40
D = G1 + cV at 5 × 10-7 g/μL
62.5cd
47.0–75.8
40
D + (−)-β-pinene at 10-5 g/μL
72.5d
57.2–83.9
40
D + (−)-α-pinene at 10-5 g/μL
65.0cd
49.5–77.9
40
Males
Diethyl ether control
5.0a
1.4–16.5
40
A = G1 + cV at 5 × 10-10 g/μL
17.5a
8.7–32.0
40
B = G1 + cV at 5 × 10-9 g/μL
42.5b
28.5–57.8
40
G1 + cV at 5 × 10-8 g/μL
40.0b
26.3–55.4
40
D = G1 + cV at 5 × 10-7 g/μL
50.0b
35.2–64.8
40
D + (−)-β-pinene at 10-5 g/μL
47.5b
32.9–62.5
40
D + (−)-α-pinene at 10-5 g/μL
55.0b
39.8–69.3
40
aChemicals dispensed by evaporation from 5 μL micropipette at indicated concentration each/μL diethyl ether (release rate approximately 2.2 × concentration/min).
bPercentages followed by same letter were not significantly different (, chi-square).
cBinomial confidence limits for proportions.
