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 7 Effect of the tested compounds on Chitinase activity, and GST activity 4th instar larvae of S. littoralis after treatment with LC₅₀

Tested compounds	Chitinase activity (μg NAGA/min/g b.w.) (Mean ± S.E)	GST activity (µmole/min/ml) (Mean ± S.E)
Heater (Lufenuron + Emamectin benzoate)	243.6 ± 1.9^a	240.3 ± 0.3^a
Pasha (Emamectin benzoate)	211.3 ± 0.7^c	231.6 ± 0.9^b
Cymax (Lufenuron)	234 ± 0.5^b	210.3 ± 0.3^c
Control	204.33 ± 0.9^d	193.6 ± 1.9^d
df	3	3
F value	275.25926	399.73333
P	0.0000 ***	0.0000 ***

Means in the same column with the same letter(s) are not significantly different. (P < 0.05) (Tukey’s Multiple Range Test)
***Highly significant effect