Effect of sublethal doses of some insecticides and their role on detoxication enzymes and protein-content of Spodoptera littoralis (Boisd.) (Lepidoptera: Noctuidae)

Bulletin of the National Research Centre

Table 1 Toxicity of the tested compounds against 4th larval instar of S. littoralis

Insecticides	Strains	LC₂₅ (ppm)	LC₅₀ (ppm)	Confidence limits		Slope (mean ± SE)	RR^*
Insecticides	Strains	LC₂₅ (ppm)	LC₅₀ (ppm)	Lower	Upper	Slope (mean ± SE)	RR^*
Profenofos	L F	0.323 12.09	1.28 156.78	0.124 32.08	0.551 496.45	1.13 ± 0.19 0.61 ± 0.22	122.48
Cyfluthrin	L F	0.282 7.75	1.04 70.99	0.656 19.17	1.455 298.70	1.19 ± 0.19 0.70 ± 0.22	68.26
Lufenuron	L F	2.62 4.732	5.22 49.18	4.208 2.512	8.07 16.54	1.62 ± 0.39 0.66 ± 0.20	9.42
Emamectin benzoate	L F	0.04 0.332	0.117 0.623	0.092 0.346	0.146 0.957	0.96 ± 0.20 2.47 ± 1.23	5.32
Spinetoram	L F	11.50 15.35	36.50 130.26	16.96 29.46	283.96 297.61	1.34 ± 0.33 0.73 ± 0.24	3.57