A comparative study between a commercial mixture compound and its individual active ingredients on the cotton leafworm, Spodoptera littoralis (Boisd.) (Lepidoptera: Noctuidae) on tomatoes under semi-field conditions

The Journal of Basic and Applied Zoology

Table 4 Susceptibility of S. littoralis to the tested compounds

Tested compounds	Larval instar	Lethal concentrations (ppm/ml)		C. I. 95%		Slope
Tested compounds	Larval instar	Lethal concentrations (ppm/ml)		Lower	Upper	Slope
Heater (Lufenuron + Emamectin benzoate)	2nd instar	LC₅₀	0.005	0.0007	0.015	0.63 ± 0.13
	2nd instar	LC₉₀	0.58	0.23	3.18	0.63 ± 0.13
	4th instar	LC₅₀	0.013	0.003	0.031	0.66 ± 0.13
	4th instar	LC₉₀	1.19	0.46	7.31	0.66 ± 0.13
Pasha (Emamectin benzoate)	2nd instar	LC₅₀	0.007	0.001	0.018	0.63 ± 0.13
	2nd instar	LC₉₀	0.71	0.28	4.08	0.63 ± 0.13
	4th instar	LC₅₀	0.051	0.003	0.035	0.63 ± 0.13
	4th instar	LC₉₀	1.68	0.61	13.77	0.63 ± 0.13
Cymax (Lufenuron)	2nd instar	LC₅₀	0.004	0.001	0.006	1.044 ± 0.23
	2nd instar	LC₉₀	0.061	0.033	0.24	1.044 ± 0.23
	4th instar	LC₅₀	0.005	0.002	0.008	1.16 ± 0.23
	4th instar	LC₉₀	0.068	0.039	0.202	1.16 ± 0.23