Contact Toxicity and Repellency of the Essential Oil from Bupleurum bicaule Helm against Two Stored Product Insects

Table 2

Contact toxicity of Bupleurum bicaule essential oil and its constituents against Lasioderma serricorne (LS) and Liposcelis bostrychophila (LB) adults.

Insects	Treatments	Concentrations (%)	LD50; (µg/adult)/(µg/cm^2)	95% FL; (µg/adult)/(µg/cm^2)	Slope ± SE	Chi square ()
LS	Essential oil	1.91–10.00	11.91	7.04–15.66	2.01 ± 0.39	17.50
	β-Bisabolene	2.97–15.00	24.99	21.68–29.14	3.86 ± 0.56	3.61
	1,4-Dimethoxy-2-tert-butylbenzene	1.97–10.00	23.56	20.03–27.24	3.18 ± 0.55	2.90
	Bornyl acetate	0.90–4.40	9.42	8.14–10.87	0.98 ± 0.17	7.53
	(2E,4E)-2,4-Nonadienal	0.27–1.30	2.31	2.03–2.61	4.00 ± 0.62	9.44
	Pyrethrins	- -	0.24	0.22–0.30	3.34 ± 0.32	13.11
LB	Essential oil	0–5.00	- -	- -	- -	- -
	β-Bisabolene	0–50.00	- -	- -	- -	- -
	1,4-Dimethoxy-2-tert-butylbenzene	0.12–1.00	62.34	55.97–69.66	6.42 ± 0.87	3.93
	Bornyl acetate	0.20–0.40	36.67	34.67–38.55	16.73 ± 2.28	7.04
	(2E,4E)-2,4-Nonadienal	0.20–0.40	32.23	30.59–33.97	17.08 ± 2.31	9.66
	Pyrethrins	- -	18.72	17.60–19.92	2.98 ± 0.40	10.56

Data from Yang et al. [26].