Repellent and Feeding Deterrent Activities of Butanolides and Lignans Isolated from Cinnamomum camphora against Tribolium castaneum

Table 1

Feeding deterrent activities of four compounds isolated from the stem barks of C. camphora against T. castaneum.

Compound	FDI (%) (mean ± SE)
	Concentration^a (ppm)
	15	50	150	500	1500
(-)-Sesamin (1)	—	—	8.15 ± 14.67a	11.41 ± 12.45b	14.60 ± 13.90b
9α-Hydroxysesamin (2)	—	12.77 ± 9.12a	14.34 ± 10.89a	18.83 ± 7.57ab	22.24 ± 3.69ab
Isoobtusilactone A (5)	42.85 ± 4.39	45.52 ± 9.23a	47.60 ± 9.64a	50.59 ± 5.67a	50.66 ± 4.48a
Isomahubanolide (6)	—	26.90 ± 8.55a	31.48 ± 8.19a	40.01 ± 2.19ab	44.26 ± 3.67ab

^a“—” is for the FDI values considered having no feeding deterrent activity; means followed by the same letters in the same column do not have significant differences () in ANOVA analysis (Tukey’s HSD test).