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Cockroach Information

See also: Roach Control Solutions Roach Information Roach Biology

Roach Information

German Cockroach Blatella germanica

German CockroachIt is the most common cockroach species in houses, apartments, restaurants, hotels and other institutions in the United States; The German roachs can occur in numbers upwards of 1000. The female carries her egg capsule protruding from the rear of her abdomen until the eggs are ready to hatch. Females produce 4-8 egg capsules, each with 30-40 eggs; The German roach is distinguished by having 2 black longitudinal stripes on the head, or pronotum.

The technology of the pest control market has switched to an integrated pest management like baiting , dusting, and the use of insect growth regulators and pheromone traps against the German roach....instead of just using a residual or contact insecticide all over the baseboards; Infestations are generally found in kitchens and bathrooms, but can inhabit other areas if the population is heavy. Repellent effect of insecticides can cause them to run to other places they would not normally go to.

The first step in treating for german roaches is to find where they are located and flush them out with a contact aerosol (PT 565, CB-80). This is facilitated with the use of a flashlight and the ability to look in all the cracks and crevices. An aerosol with a residual (Invader) can be applied here, and is very effective, but you must wait 10 days before application of a bait. Spraying a residual insecticide (Demon WP, Cy-kick, Cynoff WP) along the baseboards and edges of cabinets and appliances and counters will prevent the roaches from running too far after the are flushed. After finding where the roaches are hiding, then application of a bait Maxforce Gel) into the area where they just came from is key. Getting the bait as far back into the crack as possible will ensure good control.

Areas to inspect and apply bait are as follows:

  • In stored paper bags and boxes.
  • Under and around the base of the refrigerator.
  • Behind anything hanging on the wall... pictures, clocks, posters, etc.
  • Behind, next to, and under the stove.
  • In the corners up under the sink and other cabinets.
  • Around pipes, cords, and cables that come out of the wall.
  • Behind and under bathroom fixtures.
  • Behind the medicine cabinet and vanity.
  • In any cracks or crevices around shelves or wood trim; behind counters and cabinets
  • Along all plumbing lines.
  • In, under and around all electric appliances including refrigerators, dishwashers, washers and dryers, microwaves, coffee pots, TVs, radios and computers.
  • On the bottom of drawers.
  • Any other suspected roach harborage site.

After bait is applied, the use of an insect growth regulator (Gentrol Aerosol, Gentrol Point Source) will sterilize any surviving roaches and prevent the formation of new offspring. These growth regulators are essential for achieving long term control.

It is very important not to use any insecticides after the baiting program begins. The insecticides contaminate the bait, making it unappetizing for the roaches to eat. For a house, two thorough applications, about 3 weeks apart, should completely rid a stand-a-lone house from a roach population.

The German Roach Control Kit can save you money and take care of most of you problems!

Brown-banded Cockroach Supella longipalpa

The Brown Banded roach is characterized by two light, yellow-brown bands across body.

The brown banded female will not carry the egg capsule as long as the German roach. After 2 days, she will attach the capsule to a hidden surface. Each capsule contains 14-18 eggs, the young reach maturity in about 160 days. Brown Banded roaches don't require the same moisture resources as the German roach, so they are commonly found in furniture, or on the walls and ceilings. They are not found in all the cracks and crevaces in the kitchen like the German roach, but can often be seen in and around appliances. Also look behind pictures and in closets. They are rarely seen during the day and may fly. They prefer dry and warm places and may be scattered throughout the building.

The Brown Banded roach will take bait, but because they are not confined to the kitchen and bathrooms (where moisture is high), application of a residual spray (Demon WP, Cy-kick, Cynoff WP, Talstar One Insecticide, Talstar PL Granule, Suspend) will be necessary. Aerosol applications (Invader) in and under tight spaces will provide a residual in those areas. Also dusting (Deltadust, Borid) in wall voids and tight spaces will provide even longer term control.

Wood Roach or Waterbugs Parcoblatta pennsylvanica

Chestnut brown color; Thorax edged in white

Penwood CockroachWood roaches / Waterbugs generally live in moist areas, but can survive in dry areas if they have access to water. They breed in any type of mulch or compost that is commonly found in your yard. This includes pine bark, pine straw, leaves, dead trees, woodpiles and driveway walls. Due to the large size and slow development of Wood roaches / Waterbugs, large infestations of these insects are not common within houses. However, during certain times of the year, these cockroaches may move inside a house from outside sources.

First steps toward control involve no chemical at all. Caulk all penetrations through ground level walls. Stop water leaks, and take overflow water away from buildings; Remove rotting leaves from window wells. Move garbage cans out of preferred moist habitat. Ventilate moist spaces.

Effective Wood roaches / Waterbugs control is typically achieved with outside only treatments. Thorough application of residual insecticides (Talstar One Insecticide, Talstar PL Granule, Cy-kick, Demon WP, Suspend, Dragnet) to mulch, wood piles, weep holes, plumbing penetrations will knock out most of the populations. Application of about 3 feet up and 4 feet out away from the foundation with these residuals will give good control. Baiting with Maxforce and Niban are also effective if there is no threat of moisture for a few days. Application of a dust (Deltadust) to the cracks and weep holes in the house will provide long term residual to the main entry points.

If Wood roaches / Waterbugs do enter the structure, application of Suspend, Demon WP or Cy-kick, to the baseboards, doorways and any openings will definitely get control.

Oriental cockroach Blatta orientalis

Life cycle- 500 days

Females produce about 8 egg capsules, each with 14-16 eggs.

Oriental CockroachThere are several species of large roaches, some up to 1 1/2 inches long, and are most often found outside. Oriental cockroaches are usually black with wings that do not cover the abdomen. Oriental roaches generally live in moist areas, but can survive in dry areas if they have access to water. The Oriental cockroach prefers starchy food, and builds up populations around garbage cans. They breed in any type of mulch or compost that is commonly found in your yard. This includes pine bark, pine straw, leaves, dead trees, woodpiles and driveway walls. During times of drought there may be movement towards the inside of the home, but generally speaking they are found outdoors during the warmer months. They may also move inside if it is unseasonably cold.

First steps toward control involve no chemical at all. Caulk all penetrations through ground level walls. Stop water leaks, and take overflow water away from buildings; Remove rotting leaves from window wells. Move garbage cans out of preferred moist habitat. Ventilate moist spaces.

Effective Oriental roach control is typically achieved with outside only treatments. Thorough application of residual insecticides (Talstar One Insecticide, Talstar PL Granule, Cy-kick, Demon WP, Suspend, Dragnet) to mulch, wood piles, weep holes, plumbing penetrations will knock out most of the populations. Application of about 3 feet up and 4 feet out away from the foundation with these residuals will give good control. Baiting with Maxforce and Niban are also effective if there is no threat of moisture for a few days. Application of a dust (Deltadust) to the cracks and weep holes in the house will provide long term residual to the main entry points.

If Oriental roaches do enter the structure, application of Suspend, Demon WP or Cy-kick, to the baseboards, doorways and any openings will definitely get control.

American Cockroach Periplaneta Americana

There are several species of large roaches, some up to 1 1/2 inches long, and are most often found outside. American cockroaches generally live in moist areas, but can survive in dry areas if they have access to water. They breed in any type of mulch or compost that is commonly found in your yard. This includes pine bark, pine straw, leaves, dead trees, woodpiles and driveway walls. Due to the large size and slow development of American cockroaches, large infestations of these insects are not common within houses. However, during certain times of the year, these cockroaches may move inside a house from outside sources.

First steps toward control involve no chemical at all. Caulk all penetrations through ground level walls. Stop water leaks, and take overflow water away from buildings; Remove rotting leaves from window wells. Move garbage cans out of preferred moist habitat. Ventilate moist spaces.

Effective American roach control is typically achieved with outside only treatments. Thorough application of residual insecticides (Talstar One Insecticide, Talstar PL Granule, Cy-kick, Demon WP, Suspend, Dragnet) to mulch, wood piles, weep holes, plumbing penetrations will knock out most of the populations. Application of about 3 feet up and 4 feet out away from the foundation with these residuals will give good control. Baiting with Maxforce and Niban are also effective if there is no threat of moisture for a few days. Application of a dust (Deltadust) to the cracks and weep holes in the house will provide long term residual to the main entry points.

If American roaches do enter the structure, application of Suspend, Demon WP or Cy-kick, to the baseboards, doorways and any openings will definitely get control.

Smokeybrown cockroach Periplaneta fuliginosa

Uniformly dark brown with no markings on pronotum

There are several species of large roaches, some up to 1 1/2 inches long, and are most often found outside. Smokey brown cockroachs generally live in moist areas, but can survive in dry areas if they have access to water. They breed in any type of mulch or compost that is commonly found in your yard. This includes pine bark, pine straw, leaves, dead trees, woodpiles and driveway walls. Due to the large size and slow development of Smokey brown cockroach, large infestations of these insects are not common within houses. However, during certain times of the year, these cockroaches may move inside a house from outside sources.

First steps toward control involve no chemical at all. Caulk all penetrations through ground level walls. Stop water leaks, and take overflow water away from buildings; Remove rotting leaves from window wells. Move garbage cans out of preferred moist habitat. Ventilate moist spaces.

Effective Smokey brown cockroach control is typically achieved with outside only treatments. Thorough application of residual insecticides (Talstar One Insecticide, Talstar PL Granule, Cy-kick, Demon WP, Suspend, Dragnet) to mulch, wood piles, weep holes, plumbing penetrations will knock out most of the populations. Application of about 3 feet up and 4 feet out away from the foundation with these residuals will give good control. Baiting with Maxforce and Niban are also effective if there is no threat of moisture for a few days. Application of a dust (Deltadust) to the cracks and weep holes in the house will provide long term residual to the main entry points.

If Smokey brown cockroachs do enter the structure, application of Suspend, Demon WP or Cy-kick, to the baseboards, doorways and any openings will definitely get control.

References: Koehler, P.G. and Castner, J. L. 1991. The University of Florida, Dept. of Entomology and Nemataology Smith, E. H. and Whitman, R. C. 1992. NPCA Field Guide To Structural Pests

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