The Essential Oils Compounds of Lippia multiflora Moldenke and Cymbopogon schoenanthus (L.) Spreng Repel and Affect the Survival of the Maize Pest Spodoptera frugiperda (Lepidoptera: Noctuidae) Larvae

Table 1

Chemical composition and % of essential oil from Cymbopogon schoenanthus, L. Lippia multiflora, and their (1 : 1) combination (news compounds in bold).

Retention time (min)	Compound	C. schoenanthus (%)	L. multiflora (%)	Lm + Cs (1 : 1) (%)
12.097	β-Thujene	—	—	0.30
12.247	α-Pinene	—	—	0.12
13.135	Cis-sabinene	—	—	0.37
13.342	β-Myrcene	0.30	2.38	0.42
13.675	α-Phellandrene	0.40	3.86	0.73
13.686	(+)-4-carene	14	—	11.53
13.781	3-Carene	0.30	—	—
13.924	α-Terpinene	—	—	0.30
14.083	P-cymene	0.70	8.19	8.85
14.128	D-limonene	6.40	1.54	1.15
14.189	Eucalyptol	1.20	5.34	1.69
14.274	Trans-β-ocimene	0.20	—	—
14.424	β-Ocimene	—	—	0.40
14.655	γ-Terpinene	—	6.38	1.74
15.345	Fenchone	0.30	—	—
15.373	Linalool	—	0.57	—
15.9	Trans-p-2.8-menthadien-1-ol	3.90	—	—
15.998	Trans-p-menth-2-enol	—	—	0.33
16.2	(+)-2-Bornanone	—	1.41	—
16.24	Camphor	—	—	0.13
16.825	Terpinen-4-ol	0.40	0.51	0.26
17.111	α-Terpineol	1.03	—	0.37
17.2	Trans-piperitol	1.32	—	—
17.406	Piperitol	—	—	0.14
18.124	Isopiperitone	—	—	29.28
18.4	Thymol	—	5.36	—
18.498	Carvacrol	0.40	—	4.38
19.321	Thymol acetate	—	—	1.94
19.532	Copaene	—	1.43	—
20.104	β-Elemene	8.61	—	—
20.212	Elemene	—	—	1.17
20.478	Caryophyllene	6	27.66	18.80
20.7	Beta-gurjunene	1.26	—	—
20.886	Cis-β-farnesene	—	3.07	—
20.964	Humulene	0.90	6.74	0.89
20.995	(E)-β-Famesene	—	—	0.24
21.311	Germacrene D	—	9.79	2.56
21.5	β-Selinene	2.88	—	—
21.5	(+-)-Germacrene D	—	—	—
21.7	γ-Muurolene	0.40	0.32	—
21.7	Bicyclogermacrene	—	—	—
21.8	β-Guaiene	1.80	0.50	—
22.185	Elemol	22.78	—	—
22.297	β-Elemol	—	—	6.84
22.723	Caryophyllene oxide	1.60	5.24	0.83
23.3	Cubenol	—	0.18	—
23.3	Cubenol	—	0.18	—
23.359	10-epi-γ-eudesmol	—	—	0.71
23.62	10-epi-β-eudesmol	—	—	2.86
23.7	α-Eudesmol	19.90	—	—
24.5	Geranyl-α-terpinene	—	0.16	—
26.1	α-Vetivol	—	0.27	—
26.8	m-Camphorene	—	0.33	—
27.2	p-Camphorene	—	0.19	—
27.3	1-Heptatriacotanol	0.29	—	—
	Total	97.27	91.42	81.09

Lm: Lippia multiflora; Cs: Cymbopogon schoenanthus. Compounds representing less than 0.1% on the same line in all essential oils have not been listed. Bold values represent values of new component find in the combination 1:1. Editor could remove Bold in total part in the table.