Fig. 2.

Light micrographs of the cuticle cross section of the third instar larvae of L. sericata. a, b Normal control larvae. c, d Following 24 h post treatment with 32 % concentration of camphor oil. Note thinning and corrugated cuticular surface. Some specimens showed severely folded cuticle (inset). e, f Following 24 h post treatment with 32 % concentration of lavender oil. Note disruption of inner cellular layer of epidermal cells. Ep epicuticle, Ex exocuticle, End endocuticle, C cellular layer of epidermal cells