Smoky-brown cockroaches require high humidity for survival. They are found outside in wooded areas that provide shade and moisture. They can also be seen in protected areas around homes (tree holes and mulch) and in buildings and attics. Stacks of lumber and firewood, sewer-access openings and trash piles can contribute to infestations. Once in structures they are commonly found in attics or near fireplaces. These cockroaches can be attracted by a leaky roof.
To control Smoky-Brown Roaches you should eliminate or alter any conditions which encourage the presence and/or reproduction of the roaches. These pests thrive in dark, humid areas which have little or no air flow.
Spray exterior of structure with an appropriate labeled insecticide.. Spray any crack, crevice or entry point on the outside of the structure. This includes treating around all windows, doors, vents and in weep holes of brick veneer.
Also spray tree trunks, from ground to crotch of tree, but no higher than six feet. All mulched areas should be sprayed with your insecticide. These exterior surfaces should be treated 3 to 4 times each year.
If necessary, spray indoors in the following areas: basements, garages, carports, attics, closets, laundry rooms. Also treat beneath and behind large appliances (refrigerators, stoves, etc.) or other areas where these roaches prefer to hide. (Spraying all of your baseboards with any bug spray is not necessary!)Indoor areas should be treated 2 to 3 times per year.
Hollow blocks or other areas such as behind brick walls and along plumbing lines should be treated with Delta Dust. Although many dusts will kill roaches, Use a dust that is water-resistent and will not be destroyed by the moist habitat of the Smokybrown as would other dusts.