Pest Control 101 > Treating for Roaches

Large Roaches

  Also see German Roaches
Most people refer to this type of roach as a "water bug" or "palmetto bug".

Large roaches are common in North America and generally live outside. They live in wood piles, pine straw, or wood chips. And, since they exist alongside our apartment buildings and homes, they may forage inside for food and shelter. Once foraging inside, it is not unusual for them to start nesting in crawl spaces, attics, or cabinets.

If you are seeing these roaches in the kitchen area, the void between the kitchen cabinet bottom and the floor is a common nest site. Many times they will crawl into the holes around a pipe which is coming through a wall. Other times they may nest in ovens, refrigerators or dish washers. If you are experiencing a problem in upper level rooms, these roaches may be nesting in the attic. They love to take advantage of moisture which will build up around clogged gutters. When these gutters are cleaned, the roaches will move into the attic. If your house has a crawl space, you will find nests around points of entry. Typical points of entry include water pipes under the kitchen and bathroom, cable lines, or gas lines. All entry points from a crawl space must be treated to prevent infestations.

There are two ways to deal with these large roaches.

The first is preventive maintenance and we believe this is the best way. Make sure your gutters do not become clogged. If any roof shingles need to be replaced, do not wait until major water damage occurs. Water leaks may be small and hard to identify, but insects quickly take advantage of such moisture. And, after the leak is repaired, the bugs will stay. We know air conditioning leads to many pest problems. Moisture will accumulate around the units and pests will nest here. Make sure air conditioning units are draining away from the structure. Air conditioners are turned off in the Fall and when you turn them off, you dry up the water supply for many pests. Once this supply of water dries up, these pests will come inside. If there is no water for them around the air conditioning units, you do not have to worry about these pests moving inside come the Fall.

Most people love a pretty garden. Pine straw and wood chips around the foundation are common. However, mulch provides year round nesting sites. Roaches love this mulch and will live comfortably even when outside temperatures are freezing. If you have such sites, try to keep them dry. If you must water, periodic treatments of the mulch will reduce the nesting and reproduction of roaches. Other preventive measures include sealing windows, pipes, cables and siding with caulking. Vents to crawl spaces must be functional. Damaged siding should be repaired. Cracks in concrete walkways should be filled. Roaches are opportunistic. They will take advantage of any site which provides moisture and protection.

The second way of dealing with these roaches is to treat their nest sites. Instead of waiting until they move inside, treat outside areas such as mulch beds. We recommend using Maxforce Insect Bait Granules and a Granule Spreader in these mulch areas. The granules will sink down to where it counts. Maxforce is labeled for ants and crickets, but roaches find them very attractive. They are attracted to it and once they feed they will die.

In addition to the Maxforce Granules, you should be spraying the foundation, window frames, door frames, decks, patios, and any route of entry with a liquid residual. Cypermethrin is a great product. The brand name on the bottle may vary, but the active ingredient will always be Cypermethrin.

By treating the outside perimeter of your home, you will create a barrier the roaches cannot get through. Use one of our Pump Sprayers for applying the material. This treatment will work for other invaders as well, but really helps in controlling these large roaches.

If nesting areas are left outside of your home around decks and windows, it is only a matter of time before the roaches get inside. Start perimeter pest control to keep them out.

If the attic is infested, it's best to use a "dust". This treatment is very effective and lasts a long time. Spraying a liquid in the attic is almost useless because it is so dry and porous.

Dusting lasts long and works a lot better. If your attic is dry, use Drione Dust. If you live in a humid area or have high levels of moisture in your attic, you will get better results using DeltaDust.

If the infestation has gotten into your crawl space, use the DeltaDust. It is formulated to handle the higher levels of moisture you would expect to encounter in a crawl space.

Maxforce Insect Bait Granules
Granule Spreader
Pump Sprayers
Drione Dust

Click on any of the above products to make a purchase, or read more information.

Large Roach