Fig. 3 in Toxicicity and histological changes caused by insecticides in Spodoptera frugiperda (Lepidoptera: Noctuidae) eggs

Fig. 3. Spodoptera frugiperda eggs treated with methomyl novaluron at 72, 96, 120, and 144 h. (A, B) Embryo showing differentiated regions at 72 and 96 h (circle). (C) Embryo at 120 h showing cuticle (ct), midgut (td), and muscle (m) formation. (D) Embryo at 144 h showing muscle (m) and cuticle (ct) formation.