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Cockroaches > Large Cockroaches >
American Cockroach
Click on image for a bigger size
*This photograph of the American cockroach
is courtesy of:
University of Lincoln-Nebraska Dept. of Entomology
American Cockroaches are also known as a "water bug" or "palmetto bug".
American Cockroach Appearance:
The American roach is reddish-brown, about 1.5 inches long or longer, winged,
but seldom fly.
American Roach Diet:
American Cockroaches prefer decaying organic matter, but being scavengers
will eat anything. Sweets are attractive to the American roach. They also
will feed on starchy items like book bindings, and the back of wall paper.
Habits and Biology of American Cockroaches:
Females produce many egg capsules, having 14-16 eggs hatching in 50-55 days
into grayish-brown "nymphs". As the American cockroaches mature they become
more reddish-brown in appearance. Adults and nymphs can be found in a variety
of places. In the North,they are commonly found in steam heat tunnels or
in large institutional buildings.They more commonly congregate in open spaces
instead of small crack and crevices.When indoors,they can be located in
dark,moist areas like basements and crawl spaces.Other likely areas indoors
would be around bathtubs, floor drains,and sewers. Outside the American
roach can be found in moist, shady areas like:yards, hollow trees, woodpiles,and
mulch. At times they can be found under roof shingles or attics. Usually
they will live outside,but will wander inside in search for food and water
or during extremes in weather conditions.
Recommendations for American Roach Control:
- Caulk all penetrations through ground level walls.
- Stop water leaks, screen equipment overflow drains,
and take overflow water away from buildings; keep drain traps full or
capped.
- Remove rotting leaves from window wells.
- Move garbage cans out of preferred moist habitat.
- Ventilate moist spaces.
Generally speaking, control measures should concentrate
on the outside of the building and points of entry. This is called a "perimeter
or barrier" treatment.
Use a good residual sprays such as :
- Cyonara 9.7*Top
recommendation (Broader label and longer lasting-may be used
on ornamentals as well and will dry invisible.
Cyonara 9.7 Insecticide
- Cyper WP
Cyper WP
Cyper WP and Demon WP have the same label, but you can get smaller amounts with the Demon WP
- Demon WP
Demon
WP
You may use three residual sprays : Cyonara 9.7, Cyper
WP or Demon WP inside or outside
Spray outside around doors, windows, pipe openings, and dryer vents.
Apply also on the inside on the baseboards near the entry pts.
On the inside-apply around the plumbing under the sinks and washer and
dryer connections. You don't have to spray all the interior baseboards,
just the corners and baseboards inside the garage and basement areas.
For additional treatment you may apply
granulars around the base of the house, particularly in areas of pine
straw and mulched areas.
Two recommended granulars are : *Top
recommendation(longer lasting)Talstar One or Bifen IT Granulars
If you have these larger cockroaches entering inside your
home from the attic area (due to trees that overhang the attic or gutters
that are not clean) using baits like Intice insect baits,
would give you very good results.
Intice Bait
Intice Baits would also be excellent choices for
crawl spaces and or attics.
The residual insecticides : Cyonara 9.7 , Cyper WP, and Demon WP as well as the residual granulars: Talstar
or Bifen LP Granules should be repeated
every three months during the season.
The Intice baits last from 6 months
to a year, free from rain. Feel free to call if you have any questions.
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