Table 2.

Repellency effects of plant essential oils against the brown-banded cockroach, S. longipalpa at 24 h after recovery period (Department of Medical Entomology, Ahvaz Jundishapure University of Medical Sciences during April 2012 to September 2013.

Essential oil	Concentrations (%) (acetone was used as solvent)	Repellency Means (%)±SE
Origanum vulgare	30	96.5± 3.5
	15	96.8 ± 3.8
	10	96.03± 2.4
	5	98.8± 1.2
	2.5	99.1± 0.9
Eucalyptus sp	30	27.7± 3.9
	15	33.3 ± 3.1
	10	43.2± 2.8
	5	51.7. ± 0.9
	2.5	49.8± 4.9
Mentha piprita	30	63.3± 4.7
	15	60.1 ± 3.8
	10	59.01± 2.8
	5	68.8± 3.2
	2.5	63.3± 3.7
Achillea millefolium	30	86.7 ± 4.9
	15	84.2± 3.5
	10	83.3± 4.5
	5	92.8± 1.7
	2.5	79.3± 3.9
Rosmarinus officinalis	30	-
	15	-
	10	-
	5	86.2± 4.3
	2.5	94.5± 0.87
Control (treated with acetone)	100	6.6± 2.3