Figure 2
From: Mosquito repellence induced by tarsal contact with hydrophobic liquids
Wetting liquids trigger mosquito escape response. (a) Still video frame of mosquito landing. The mosquito immediately ceases wing-motion after contacting a substrate. (b) Schematic of contact-time assay. Aedes albopictus was used for all experiments. This chamber provides host cues (odour, heat, carbon dioxide, and visual contrast) to promote landing on ground-glass substrates. Applying liquids did not affect the attraction behaviour of mosquitoes to landing area (glass substrates) (Supplementary Fig. S4a). Surface roughness of liquid-coated substrates were identical (Supplementary Fig. S5a). (c) Contact-time of mosquitoes on liquid-coated glass substrates (n = 12–13). Application ratio: 0.25 mg/cm2. Different letters (A or B) indicate significant variance among liquids (one-way ANOVA with the Tukey post hoc test, P = 6.77 × 10−4). The contact time of each trial is displayed in Supplementary Table S3. See also Supplementary Video S3.
