Behavioral Response of Plum Curculio, Conotrachelus nenuphar, to Synthetic Fruit Volatile Lures and the Male-Produced Aggregation Pheromone

Table 2

Response of C. nenuphar to the tested commercial lures and synthetic pure compounds in four-choice olfactometer bioassays.

Experiment	Compounds/lure treatments	Mean (±SE) number of responders
		Female	Male
1	BZ	0.25 ± 0.10 c	0.50 ± 0.15 b
	BEN	1.17 ± 0.24 ab	0.92 ± 0.19 ab
	TCB	0.58 ± 0.15 bc	0.58 ± 0.15 b
	Control	1.83 ± 0.32 a	1.50 ± 0.19 a
	2	PE	2.08 ± 0.26 a	2.42 ± 0.38 a
		TCB	0.17 ± 0.11 b	0.33 ± 0.19 b
PE + TCB		1.42 ± 0.19 a	0.92 ± 0.19 a
Control		0.58 ± 0.19 b	0.92 ± 0.19 b

BZ: commercial benzaldehyde lure; BEN: pure synthetic benzaldehyde; TCB: pure synthetic 1,2,4-trichlorobenzene; PE: commercial plum essence lure. For each experiment, groups of 5 weevils of either sex were released per test in the olfactometer and replicated 12 times. For each experiment and sex, means having no letter in common are significantly different (ANOVA, Tukey-Kramer HSD, ).