Table 4.

Toxicity effect of various compounds against the second instar crawlers of P. lilacinus.

	Percent mortality (mean ± SE) at different concentrations after 48 h
Compounds	5,000 ppm	2,500 ppm	1,250 ppm	625 ppm	312.5 ppm	Pooled mean
1-Cyclohexyl-2-pyrrolidone	58 ± 8.37	48 ± 4.47	38 ± 10.95	26 ± 5.48	18 ± 4.47	37.60 ± 16.15 def
Camphene	56 ± 8.94	46 ± 11.40	36 ± 11.40	30 ± 10.00	20 ± 7.07	37.60 ± 15.62 def
Cinnamaldehyde	72 ± 8.37	50 ± 7.07	42 ± 8.37	34 ± 5.48	24 ± 8.94	44.40 ± 18.05 bcd
Citral	52 ± 8.37	40 ± 14.14	30 ± 12.25	22 ± 13.04	14 ± 5.48	31.60 ± 17.00 f
Geraniol	82 ± 8.37	60 ± 7.07	48 ± 13.04	32 ± 4.47	24 ± 5.48	49.20 ± 22.35 abc
L-carvone	70 ± 14.14	40 ± 7.07	30 ± 7.07	24 ± 5.48	16 ± 5.48	36.00 ± 20.62 def
L-limonene	76 ± 11.40	62 ± 4.47	56 ± 8.94	44 ± 5.48	34 ± 8.94	54.40 ± 16.60 a
L-menthol	80 ± 7.07	60 ± 10.00	52 ± 4.47	36 ± 5.48	28 ± 13.04	51.20 ± 20.27 ab
β-myrcene	68 ± 8.37	50 ± 10.00	40 ± 12.25	34 ± 5.48	24 ± 11.40	43.20 ± 17.73 bcde
Ocimene	68 ± 16.43	42 ± 8.37	32 ± 13.04	24 ± 5.48	10 ± 10.00	35.20 ± 22.38 ef
α-terpinene	62 ± 10.95	54 ± 16.73	40 ± 10.00	34 ± 11.40	18 ± 8.37	41.60 ± 19.08 cde
β-terpinene	56 ± 13.42	48 ± 8.37	42 ± 16.43	34 ± 15.17	28 ± 10.95	41.60 ± 15.73 cde
Pooled mean	66.67 ± 1.27 a	50 ± 1.27 b	40.50 ± 1.27 c	31.17 ± 1.27 d	21.50 ± 1.27 e
Compounds	F 11, 299 = 12.45; p < 0.0001
Concentrations	F 4, 299 = 189.09; p < 0.0001
Compound × Concentrations	F 44, 299 = 0.93; p > 0.05

Mean of five replications: Means followed by the same letters within a column are not statistically significant (p > 0.05) by Tukey’s HSD.