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 2 In vivo effect of the tested compounds on the activity of AChE and GST of S. littoralis larvae

Treatment	AChE¹		GST²
Treatment	Activity (μmole)	% of control	Activity (nmole)	% of control
Control Profenofos Cyfluthrin Lufenuron Emamectin benzoate Spinetoram	1.832^d 0.389^a 1.065^b 1.591^c 1.635^c 1.651^d	– 21.28^a 58.13^b 86.84^c 89.25^c 90.12^c	35.64^b 29.69^b 19.77^a 82.15^c 92.39^d 98.41^d	– 83.31^b 55.47^a 230.50^c 259.23^d 276.14^e

¹Activity is expressed as μmole acetylthiocholine hydrolyzed/min. mg protein
²Activity is expressed as nmole CDNB conjugated formed/min. mg protein
Means in the same column followed by the same letters are not significantly at P = 0.05