Fig. 7From: Indoor residual spraying practices against Triatoma infestans in the Bolivian Chaco: contributing factors to suboptimal insecticide delivery to treated householdsSedimentation rates of alpha-cypermethrin a.i. in four spray tanks measured at 1-min intervals for 15Â min following rigorous mixing of the tank solution. The lines representing the best fit to the data are shown for each tank. Observed values (points) represent the median of three sub-samplesBack to article page