At a Glance Roach Identification and Treatment Summary Chart



Small Roaches (1/2"-1")

German Roach

german roaches

Identification

German roach adults range in size from 1/2 inch- 5/8 inch long. They are light to medium brown with 2 dark distinctive stripes behind the head. The young (nymphs) are wingless, smaller and much darker in color, with a light stripe on their backs.

Habits and Biology

The German cockroach is one of the most common roaches found in apartment houses, restaurants, and hotels. German cockroaches (eggs included), are "brought in", usually on man's belongings, luggage, boxes or packages.

Sanitation & Exclusion

German roach control requires very good sanitation in the kitchen during your process of eliminating these roaches.

German Roach Control Measures

Generally speaking, German roach control is best by high quality baits, such as Invict or Advion Roach Bait. These baits do not have bait aversion and bait resistance.

Restaurants will need to continue to spray using liquid insecticides, aerosols, dusts and insect growth regulators.

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Oriental Cockroach

oriental roach

Identification

Oriental roaches are shiny black and are about 1.25 inches long. They have wings but can not fly. The total length for the female is 1 ΒΌ" and 1" for the male.

Habits and Biology

Oriental roaches can be found in damp areas such as crawl spaces and basements, as well as kitchens. These roaches can live in low temperature ranges, living in protected sites during the winter.
During drought time or unseasonably cold weather, they may move inside your home.

Sanitation & Exclusion

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.

Oriental Roach Control Measures

Generally speaking, control measures with a residual insecticide, such as LambdaStar Ultra Cap 9.7 should concentrate on the outside of the building and points of entry. This is called a "perimeter or barrier" treatment.

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Brownbanded Roach

brown banded roaches

Identification

Mistaken for the German Roach is common when identifying the Brown Banded Roach. Its habits are different from the German Roach.

Habits and Biology

Since they do not require the same amount of moisture as the German roach, they are not usually found in the kitchens or bathrooms seeking water. They can be found under a major appliance like a refrigerator, however.

Sanitation & Exclusion

As with the German Roach, it is important to keep up with good sanitation.Since they may be found in all rooms, make sure good sanitation is throughout the structure.

Brown Banded Roach Control Measures

Since Brownbanded roaches are found in other locations besides kitchens and bathrooms, inspect and treat all rooms. Pay attention to the upper walls of closets, pantries, and ceilings.

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Large Roaches (1.5"-or more)

American Cockroach

Picture of adult (male and female),
Nymphs,
Egg Capsules ( with eight eggs on each side)

Identification

The American roach is reddish-brown, about 1.5 inches long or longer, winged, but seldom fly. American Roaches are also known as a "water bug" or "palmetto bug". They will fly when temperatures are above 85 degrees.

Habits and Biology

The American female roach will drop her egg capsule near a food source or protected area.
As the American cockroaches mature they become more reddish-brown in appearance.

Sanitation & Exclusion

Exclusion techniques: caulking and screening for the American cockroach.

Sanitation: Eliminate food, moisture, and harborage areas available to the roaches.

American Roach Control Measures

Generally speaking, control measures should concentrate on the outside of the building and points of entry of the American Roach.

This is called a "perimeter or barrier" treatment.

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Smokybrown Cockroach


Picture of adults, and nymphs

Identification

This roach is slightly smaller than the American cockroach and they have a uniform mahogany color. These roaches fly at night toward lights.

Habits and Biology

Smokybrown roaches as a tropical cockroach are not all over the USA.
They are common in central and east Texas,
Gulf Coast, throughout Florida
and up the eastern seaboard.

Sanitation & Exclusion

Although the Smokybrown roach has many places to habitat outside, it will enter if there is an entry point. Seal as many cracks and crevices as possible.

Ventilate moist places. Control measures should concentrate on the outside of the building and points of entry of the Smokybrown Roach.

Smokeybrown Roach Control Measures

You may use concentrated residual sprays for Smokybrown Cockroach Control: inside or outside. Spray a 3-6 foot band around the entire house. Spray outside around doors, windows, pipe openings, and dryer vents.

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Woods Roach

pa wood roach

Picture of egg capsules, adults, and nymphs
Identification

Woods roaches are very similar
in appearance to the American roach; They are slightly smaller than the American Cockroach, about 3/4 to 1 1/4 inch long.

Habits and Biology

The woods roach normal habitat is moist woodland areas, but they frequently become a household nuisance because they wander into or are carried into houses, with firewood, etc.

Sanitation & Exclusion

The insecticides used with success against other cockroach species are of very limited benefit against wood roaches. Exclusion techniques that prevent wood roach entry should be considered.

 

Wood Roach Control Measures

Occasionally, populations can build in crawl spaces under the house. Generally speaking, control measures should concentrate on the outside of the building and points of entry. This is called a "perimeter or barrier" treatment.

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Australian Roach

australian  wood roach

Picture of Adult
Identification

They can be identified by yellow stripes along the outer front edge of the wings. In Florida, they are commonly called "palmetto bug", just like the American Roach. The Australian roach is often confused with the American roach.

Habits and Biology

The Austrailan Roach is mainly found in the southern United States, but can be found in the northern states in greenhouses (where humidity is present). They are good fliers.They will enter buildings where their is enough food, humidity and heat available.

Sanitation & Exclusion

Practice exclusion techniques such as sealing any cracks, gaps or openings with caulking compound, putty or plastic wood. Eliminate pet food outside. Maintain tight fitting screens, doors and windows.

Australian Roach Control Measures

Generally speaking, control measures should concentrate on the outside of the building and points of entry of the Austalian Roach.

This is called a "perimeter or barrier" treatment.

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*These photographs of the American, Smoky, and Woods cockroaches are courtesy of:
University of Lincoln-Nebraska Dept. of Entomology