The insecticidal, biological and biochemical
effects of Indoxacarb and Methoxyfenozoidwere evaluated on the 4^th
instar larvae of Spodoptera littoralis (Boisd.) (Lepidoptera:
Noctuidae). Indoxacarb exhibited high level of toxicity with Lc₅₀
(0.3983ppm) followed by Methoxyfenozoid (1.7799ppm).    The tested insecticides at all treatments
increased larval mortality, larval duration and decreased pupation rate, pupal
weight and adult emergence. Female fecundity and fertility were significantly
reduced at all treatments compared to control. Furthermore, a significant
reduction in the digestive enzymes (amylase, trehalase, invertase) and GOT
& GPT were recorded.