Fig 3. Mortality rates of adult A. albopictus from Cameroon (6 locations) 24 hrs after exposure to insecticides alone or with 1 h pre-exposure to synergist.

i, Kumba; j, Foumban; k, Bafoussam; l, Sangmelima; m, Ebolowa; n, Bertoua. Error bars represent standard error of the mean. DDT, Dichlorodiphenyltrichloroethane. PBO, Piperonyl butoxide. DEM, Diethyl maleate.