Figure 4 in Insecticidal effect of diatomaceous earth and dolomite powder against Corn weevil Sitophilus zeamais Motschulsky, 1855 (Coleoptera: Curculionidae)

Figure 4. Pictures of Sitophilus zeamais exposed to inert dusts taken by scanning electron microscopy (SEM). A. Rostrum (R) of insect exposed to dolomite powder: sensilla (S). Bar = 50 µm. B. Dorsal view of insect exposed to diatomaceous earth: trichoid sensilla (Se), sensilla (S), antenna (A), rostrum (R). Bar = 200 µm. C. Sensilla of insect exposed to dolomite powder. Bar = 5 µm. D. Antenna (A) of insect exposed to diatomaceous earth: trichoid sensilla (Se), sensilla (S). Bar = 50 µm. E. Antenna (A) of insect exposed to dolomite powder: trichoid sensilla (Se), sensilla (S). Bar = 20 µm.