A dual action container for killing adult mosquitoes and their larvae, comprising: a housing consisting of a closed bottom and closed side walls with an interior wall surface and open top; a plurality of drain openings solely along a horizontal line in the housing substantially midway between the closed bottom and open top; and either (i) a combined coating layer that contains an adulticide and a larvicide, the combined coating layer coating the interior wall surface of the housing both above and below the plurality of drain openings along the substantially midway horizontal line in the housing, wherein the combined coating kills both adult mosquitoes and their larvae over time; or (ii) an adulticidal coating layer coating the top half of the interior wall surface of the housing above the plurality of drain openings along the midway horizontal line in the housing; and a larvicidal coating layer coating the bottom half of the interior wall surface of the housing below the plurality of drain openings along the midway horizontal line in the housing, wherein the adulticidal coating and the larvicidal coating kill both adult mosquitoes and their larvae over time; and wherein the plurality of drain openings prevent water from completely filling the housing. a housing consisting of a closed bottom and closed side walls with an interior wall surface and open top; a plurality of drain openings solely along a horizontal line in the housing substantially midway between the closed bottom and open top; and either (i) a combined coating layer that contains an adulticide and a larvicide, the combined coating layer coating the interior wall surface of the housing both above and below the plurality of drain openings along the substantially midway horizontal line in the housing, wherein the combined coating kills both adult mosquitoes and their larvae over time; or (ii) an adulticidal coating layer coating the top half of the interior wall surface of the housing above the plurality of drain openings along the midway horizontal line in the housing; and a larvicidal coating layer coating the bottom half of the interior wall surface of the housing below the plurality of drain openings along the midway horizontal line in the housing, wherein the adulticidal coating and the larvicidal coating kill both adult mosquitoes and their larvae over time; and wherein the plurality of drain openings prevent water from completely filling the housing. (i) a combined coating layer that contains an adulticide and a larvicide, the combined coating layer coating the interior wall surface of the housing both above and below the plurality of drain openings along the substantially midway horizontal line in the housing, wherein the combined coating kills both adult mosquitoes and their larvae over time; or (ii) an adulticidal coating layer coating the top half of the interior wall surface of the housing above the plurality of drain openings along the midway horizontal line in the housing; and a larvicidal coating layer coating the bottom half of the interior wall surface of the housing below the plurality of drain openings along the midway horizontal line in the housing, wherein the adulticidal coating and the larvicidal coating kill both adult mosquitoes and their larvae over time; and wherein the plurality of drain openings prevent water from completely filling the housing. <EOS>