Evaluation of the Effect of Four Bioactive Compounds in Combination with Chemical Product against Two Spider Mites Tetranychus urticae and Eutetranychus orientalis(Acari: Tetranychidae)

Table 1

The major chemical constituents of the four EOs.

Compound	% Relative peak area
	RI ^a	RI ^b	M. pulegium	L. stoechas	R. officinalis	O. compactum
α-pinene	939	932	0.42	2.84	12.76	2.24
Camphene	953	946	—	4.09	2.47	Tr
α-Terpinene	1002	1007	—	—	Tr	3.45
p-Cymene	1026	1022	—	0.32	0.09	11.22
1,8- cineole	1033	1033	—	1.42	31.15	Tr
γ-Terpinene	1062	1024	—	0.34	—	17.23
Fenchone	1088	1087	—	30.39	—	Tr
Camphor	1143	1146	—	43.97	26.96	0.14
Borneol	1165	1166	—	2.92	5.46	0.42
Dihydrocarvone	1194	1191	3.66	—	—	—
R (+)-pulegone	1238	1233	74.03	—	Tr	—
Carvone	1242	1239	5.45	0.12	—	Tr
Thymol	1290	1293	—	—	—	30.05
Carvacrol	1298	1291	—	—	—	25.33
Total %			83.56	86.41	78.89	90.08