Fig. 4

Feeding progression of Rhimi-CAP_2bR silenced ticks. Photographs of open cotton sleeves showing shaved patches on cattle where the confined cattle fever tick (CFT) female ticks fed, photographed at 5, 7 and 9 days (numbers on the left side of the figure). Additional images of ticks feeding throughout the whole experiment are shown in Additional file 5: Table S2. Ticks that have already dropped from animals are highlighted with yellow circles. D, Number of days ticks feed on the animals, dsCAP_2bR, Rhimi-CAP_2bR dsRNA-injected ticks; see Fig. 2 caption for other definitions. The photographs of negative and positive controls were previously published [30] and are given here for comparison purposes