Table 5.

Effect of asaricin 1, isoasarone 2, and trans-asarone 3 against on the adult emergence of three stored product insect pests infesting rice.

Compounds	Concentrations (µg/mL)	Percentage of reduction in egg number
		S. oryzae*		R. dominica*		P. interpunctella*
		Mean number of adult emergence	% IR**	Mean number of adult emergence	% IR**	Mean number of adult emergence	% IR**
Asaricin 1	1	19.25 ± 2.01	34.25 ± 1.30 d	16.75 ± 2.17	41.10 ± 1.80 c	28.50 ± 0.86	21.50 ± 2.25 d
	2	2.08 ± 1.04	89.25 ± 3.70 b	1.52 ± 0.76	84.50 ± 2.90 b	11.50 ± 2.36	59.25 ± 3.83 c
	4	0.00 ± 0.00	100.00 ± 0.00 a	0.00 ± 0.00	100.00 ± 0.00 a	3.80 ± 1.20	87.37 ± 3.47 a
Isoasarone 2	1	15.00 ± 2.64	47.50 ± 1.47 c	15.50 ± 2.53	44.70 ± 1.40 c	21.50 ± 1.52	24.60 ± 2.10 d
	2	1.52 ± 0.76	86.00 ± 3.20 b	1.73 ± 0.86	89.34 ± 2.80 b	11.50 ± 1.52	59.50 ± 2.30 c
	4	0.00 ± 0.00	100.00 ± 0.00 a	0.00 ± 0.00	100.00 ± 0.00 a	5.40 ± 0.98	78.98 ± 4.51 b
Trans-asarone 3	1	28.00 ± 1.54	2.25 ± 0.71 f	25.30 ± 0.50	1.00 ± 0.40 f	25.50 ± 1.52	1.17 ± 1.20 g
	2	25.00 ± 1.52	13.50 ± 2.10 e	25.75 ± 2.88	17.75 ± 0.83 d	24.50 ± 2.40	7.50 ± 0.04 f
	4	26.50 ± 1.54	8.60 ± 1.02 e	28.50 ± 1.73	9.25 ± 1.04 e	26.25 ± 2.64	14.25 ± 2.50 e

*Test performed on S. oryzae and R. dominica two weeks old adults and P. interpunctella their instar larvae.

**% IR (inhibition rate) values followed by a common letter are not significantly different (p < 0.05).