Table 3.

Toxicity of the essential oils of Artemisia giraldii and A. subdigitata against Sitophilus zeamais adults.

Toxicity	Essential oil	LD50/LC50 *	95% FL	Slope ± SE	Chi square (χ2 )
Contact	A. giraldii	40.51	37.83–44.89	3.26 ± 0.39	7.13
	A. subdigitata	76.34	70.77–82.14	2.37 ± 0.21	9.48
	Pyrethrum extract	4.29 a	3.86–4.72	0.72 ± 0.01	13.51
Fumigant	A. giraldii	6.29	5.48–7.38	2.59 ± 0.30	8.12
	A. subdigitata	17.01	15.57–18.78	1.67 ± 0.14	15.90
	MeBr	0.67 b	-	-	-

* Contact toxicity: LD₅₀ = μg/adult; Fumigant: LC₅₀ = mg/L air, ^a Liu et al. [12]; ^b Liu & Ho [28].