Combinational Effect of Rumex tingitanus (Polygonaceae) Hexane Extract and Bacillus thuringiensis  δ-Endotoxin against Spodoptera littoralis (Lepidoptera: Noctuidae)

Table 1

Chemical composition of hexane extract prepared from R. tingitanus leaves.

Compound	Rt (min)	KI	Peak area ()
Camphor	9,754	1146	0.68
6.10.14-Trimethyl-2-pentadecanone	26.429	1847	0.40
Palmitate Methyl	28.049	1928	0.15
Palmitate Ethyl	29.360	1996	1.96
9.12-Octadecadienoic acid Methyl	31.214	2093	0.14
9.12.15-Octadecatrienoic acid Ethyl	31.335	2113	0.25
Trans-phytol	31.606	2117	0.90
9.12-Octadecadienoic acid Methyl	32.412	2155	1.21
9.12.15-Octadecatrienoic acid Ethyl	32.540	2215	1.85
Phytosterols
δ-5-Ergosterol	39.67	3029	0.56
Campesterol	42.359	3131	6.43
Stigmasterol	44.687	3170	1.17
β -Sitosterol	45.463	3187	22.59
β-amyrin	46.375	3337	8.92
γ -Sitosterol	47.068	3351	26.32
Stigmasta-3.5-dien-7-one	48.176	3432	1.49
∑ Identified compounds			75.02

Rt: retention time.
KI: Kovats indices on HP-5MS capillary column with reference to C₁₀–C₂₂ n-alkanes injected in the same conditions.
%: percentages are the means of two runs and were obtained from electronic integration measurements using a selective mass detector.