Table 3

Solvent	Plant part	Exposure concentration (µL/L air)
Solvent	Plant part	5.0	10	15	20
C. maculatus
Hexane	Leaf	2.86 ± 1.85^a	8.89 ± 2.22^ab	20.75±2.94^abc	23.56 ±2.30^bc
Hexane	Fruit	7.30 ± 2.03^a	13.02 ± 0.78^a	36.67 ± 2.18^a	45.78 ± 2.99^a
Diethyl ether	Leaf	10.07±2.71^abc	14.52 ±2.69^cd	31.67 ± 2.21^c	50.89 ± 2.66^b
Diethyl ether	Fruit	22.38 ± 2.63^a	50.24 ± 3.89^a	100.0 ± 0.0^a	100.0 ± 0.0^a
Methanol	Leaf	2.22 ± 1.21^a	7.30 ± 2.03^a	17.30 ± 2.19^b	25.56 ± 2.06^b
Methanol	Fruit	5.08 ± 2.15^a	10.79 ± 2.76^a	32.86 ± 2.68^a	41.33 ± 3.74^a
S. oryzae
Hexane	Leaf	0.0 ± 0.0^a	4.44 ± 2.78^c	12.44 ±2.69^bc	18.22 ± 1.77^c
Hexane	Fruit	2.86 ± 1.85^a	10.16 ±2.63^ab	26.67 ±2.21^ab	36.44 ±2.77^ab
Diethyl ether	Leaf	5.08 ± 1.15^bc	9.52 ± 2.61^d	26.01 ± 2.07^c	41.78 ± 2.30^b
Diethyl ether	Fruit	15.79 ±1.75^ab	37.22 ±1.63^ab	83.56 ± 3.13^c	100.0 ± 0.0^a
Methanol	Leaf	0.0 ± 0.0^a	0.0 ± 0.0^a	8.89 ± 1.97^b	17.44 ± 2.74^b
Methanol	Fruit	0.0 ± 0.0^a	5.08 ± 1.15^a	19.71 ±2.39^ab	29.33 ±1.99^ab
T. castaneum
Hexane	Leaf	0.0 ± 0.0^a	0.0 ± 0.0^c	6.22 ± 2.05^c	12.89 ± 1.77^c
Hexane	Fruit	0.0 ± 0.0 ^a	0.0 ± 0.0^c	20.22±2.56^abc	28.89±2.06^abc
Diethyl ether	Leaf	2.22 ± 1.22^c	6.67 ± 2.72d	17.90 ± 2.07^d	36.89 ± 2.16^b
Diethyl ether	Fruit	10.16±2.63^abc	27.56 ±2.23^bc	66.22 ± 3.18^b	92.00 ± 2.89^a
Methanol	Leaf	0.0 ± 0.0^a	0.0 ± 0.0^a	4.44 ± 2.72^b	13.89 ± 2.77^b
Methanol	Fruit	0.0 ± 0.0^a	0.0 ± 0.0^a	13.65 ± 0.63^b	22.78 ± 2.89^b

Values represent Mean ± SD; Similar alphabets in a column do not differ significantly using Tukey’s test (P ≤ 0.05).

Table 3: Percent repellent activity of solvent extracts of T. asiatica against C. maculatus, S. oryzae and T. castaneum after 3 h in the filter paper test.