VOCs-Mediated Location of Olive Fly Larvae by the Braconid Parasitoid Psyttalia concolor: A Multivariate Comparison among VOC Bouquets from Three Olive Cultivars

Table 2

Number of antennal drumming series performed by Psyttalia concolor females during searching behavior on healthy and Bactrocera oleae-infested olives in two-choice bioassay in still air arena.

Cultivar	Treatment	Infested olives		Healthy olives			value
		Drumming series; Mean ± SE (N)	Replicates	Drumming series; Mean ± SE (N)	Replicates
Arbequina	Visual + olfactory	5,6 ± 1,1	25	1,0 ± 0,6	5	3,4609	0,0734
	Olfactory	7,0 ± 0,9	24	2,5 ± 1,3	6	5,3001	0,0209
Frantoio	Visual + olfactory	7,9 ± 1,3	23	1,6 ± 0,8	7	6,833	0,0142
	Olfactory	2,3 ± 0,3	22	1,5 ± 0,4	8	1,6977	0,2032
Leccino	Visual + olfactory	9,8 ± 1,6	22	1,4 ± 0,5	8	9,6881	0,0042
	Olfactory	2,1 ± 0,5	23	0,1 ± 0,1	7	5,531	0,0259

Within a row, the asterisk indicates a significant difference ().
ns: not significant.
SE: standard error.