Australian Cockroach Identification
These are similar in appearance to the American Roach but is smaller in size. It is rarely more than 1-1/4 inches long. They have a yellow area on their thorax as seen in the picture.
They are reddish brown. 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.
Australian Roach Diet
Australian Roaches will feed on plant material and decaying material. They like starchy material in homes such as book bindings and glue in boxes. They have eaten holes in clothing.
Habits and Biology of Australian Cockroaches
They are mostly found in the south and tropical areas like Hawaii and Florida. They have been found in houses in the north due to transportation and shipping. They can populate well when temperatures stay above 80 degrees.
The female Australian roach drops egg cases in cracks and crevices to hide and protect them. Each one of these cases has about 24 eggs with a smaller percentage that hatch. The nymphs are marked with yellow patches and take about a year to develop.
This 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 there are enough food, moisture, and heat available.
Recommendations for Australian Roach Control
Exclusion & Sanitation
- 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.
- If practical, bring only enough firewood indoors for a day or two to prevent insects from later emerging in the house.
- Individual roaches found inside can be collected with a vacuum cleaner or a broom and dustpan and discarded.
- 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.
Since these roaches live and breed outside, management would include excluding and preventing them from entering the structures. After that, use the recommended techniques outlined below.
Pest Control Products To Use For Australian Cockroaches
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.
You may use concentrated residual sprays : LambdaStarCap Ultra 9.7, Defense SC Cyper WSP, or Demon WP inside or outside. Spray a 3-6 foot band around the entire house. Spray outside around doors, windows, pipe openings, and dryer vents.
Recommended products are in the table below. They would require a pump sprayers.
Insects baits like Invict Xpress Granular Bait or Intice Perimeter Bait can be used indoors, outdoors or in turf areas. Invict Xpress has multiple food attractants to attract not only the Australian Roach, but also Crickets, some Ants, Silverfish, Earwigs and Firebrats.
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 Invict Express Insect Baits or Intice Perimeter Baits, would give you very good results. This insect bait would also be excellent choices for crawl spaces and or attics.
Dusting with a hand duster where the American roaches would be traveling. Such places would be behind baseboards, wall outlets, wall voids and underneath appliances. The recommended dust is D-Fense Dust.
The residual insecticides:Lambdastar Ultra Cap 9.7, D-Fense SC, Cyper WSP, and Demon WP as well as the residual granulars, Bifen LP Granules should be repeated every three months during the season. The top recommendation is Lambdastar Ultracap 9.7. It has an improved encapsulated formula to cause it to bond to surfaces better and holds up under ultraviolet light and rain longer.
The Invict Xpress Granular, Intice Perimter last about 6 months, free from rain. D-Fense Dust last from 6 months to a year, if free from rain.
Insecticide Concentrates & Granulars
Recommended residual sprays for perimeter treatments, basements and attics
Lambdastar Ultracap 9.7
LambdaStar Ultracap 9.7 (Broader label and longer lasting-may be used inside or outside and will dry invisible. Lambdastar Ultracap has no smell. LambdaStar Ultracap will last longer outside and adhere to the surface better due to its encapuslated technology. It will yield 20-40 gallons
Cyper WSP and Demon WP
Cyper WSP and Demon WP have the same label, but Cyper WSP is more economical than Demon WP. Demon WP and Cyper WSP will leave a visible residue seen against dark wood.
D-Fense SC will also dry invisibly with no smell. It can be used inside or outside. The pint will yield 11-22 gallons.
| Where to spray:
You may use three residual sprays : LambdaStar Ultra Cap 9.7, D-Fense SC, Cyper WSP 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.
Insecticide Granules and Insecticide Baits
For additional treatment: You may apply Bifen LP Granules around the base of the house, particularly in areas of pine straw and mulched areas and or Intice Perimeter Bait as supplemental treatments. If you have these larger cockroaches entering 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 excellent results.
Invict Xpress contains the powerful ingredient, imidacloprid, for quick results. Invict Xpress is a broad spectrum granule bait that will also kill ants, cockroaches, crickets, mole crickets, silverfish, firebrats, and earwigs.
For additional treatment: You may apply an insecticide Dust such as D-Fense Dust with a duster. This dust would be useful in cracks and crevices, wall voids, electrical fittings, around doors and window frames, etc.
The residual insecticides: LambdaStar UltraCap 9.7, D-Fense SC, Cyper WSP, and Demon WP as well as the residual granulars: Bifen LP Granules should be repeated every three months during the season.
The Intice and Invict baits last from 6 months to a year, free from rain. The D-Fense Dust last up to 8 months. Feel free to call if you have any questions.