Fig 1

The duration of effective residual action (>80 % mortality in cone bioassays) of different dosages and formulations of alpha-cypermethrin against Anopheles stephensi (dotted line represents 80 % cut off; CWDP- Cement wall distemper coated, CWLC- Cement wall lime coated, MWLC- Mud wall lime coated, BWUP- Brick wall unpainted)