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COCKROACHES PHE
Adults are black and 25-33 mm long.
Males are short-winged but do not fly,
females are brachypterous.
Their tarsi lack aroliar pads, precluding this cockroach from
climbing on smooth vertical surfaces.
Oriental
American
Turkestan
Australian
ORIENTAL
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COCKROACHES PHE
Adults are black and 25-33 mm long.
Males are short-winged but do not fly,
females are brachypterous.
Their tarsi lack aroliar pads, precluding this cockroach from
climbing on smooth vertical surfaces.
ORIENTAL
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COCKROACHES PHE
Adults are 14-25 mm long.
Females have very short, nonfunctional wings and are
black, with light bands on the anterior margin of the thorax.
Oriental
American
Turkestan
Australian
TURKESTAN
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COCKROACHES PHE
Males are fully winged and light brown.
Oothecae are 9-12 mm long, each typically containing 18 eggs.
Oriental
American
Turkestan
Australian
TURKESTAN
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COCKROACHES PHE
similar to that of the Oriental cockroach, although their
developmental time (3-4 months from egg to adult) is much shorter
TURKESTAN
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COCKROACHES PHE
34-53 mm in length
reddish brown, with substantial variation in light and
dark patterns on the pronotum.
Adults are winged and capable of flight.
Oriental
American
Turkestan
Australian
AMERICAN
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COCKROACHES PHE
Adult body coloration is similar to that of the
American cockroach but with paler lateral markings on the
anterior lateral edges of the tegmina. The pronotum is
ringed with similar coloration.
AUSTRALIAN
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COCKROACHES PHE
In situations where both species occur (e.g., treeholes, attics), the
SPECIES cockroach tends to displace the SPECIES.
AUSTRALIAN DISPLACES SMOKYBROWN
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COCKROACHES PHE
can be a serious pest in greenhouses and
other tropical environments in
more temperate latitudes, such as
atriums and interior plantscapes, where it
can cause feeding damage to plants, notably, seedlings
Oriental
American
Turkestan
Australian
AUSTRALIAN
-
COCKROACHES PHE
It can be differentiated from the American cockroach by
its slightly smaller size (25-33 mm) and uniform dark coloration
SMOKYBROWN
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COCKROACHES PHE
if alarmed, can spray a noxious mix of aliphatic
compounds that are both odoriferous and caustic.
If sprayed into the eyes or onto soft tissues, a temporary burning
sensation is experienced
FLORIDA WOODS
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COCKROACHES PHE
Adults are similar in size to the
German cockroach (13-14.5 mm long) but lack pronotal stripes
SMOKYBROWN
BROWNBANDED
GERMAN
BROWNBANDED
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COCKROACHES PHE
Adults have two dark bands of
horizontal stripes on the wings,
whereas nymphs have two prominent bands running across the
mesonotum and first abdominal segment.
BROWNBANDED
-
COCKROACHES PHE
Populations tend to occur in the
nonfood areas of homes such as
bedrooms, living rooms, and closets, as well as
in electronics equipment, such as Central Processing Units (CPUs) and
telephones, and storage cabinets in commercial office buildings
BROWNBANDED
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COCKROACHES PHE
Members of this species seek harborage higher within rooms than does the
German cockroach.
BROWNBANDED
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COCKROACHES PHE
Adults are about 16 mm long with
two dark, longitudinal bands on the pronotum (Fig. 6.11).
It requires warm (optimally 30-33C)
GERMAN
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COCKROACHES PHE
The SPECIES cockroach is closely related to the
German cockroach, and they are difficult to distinguish morphologically
ASIAN
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COCKROACHES PHE
SPECIES AND SPECIES cockroaches are capable of
hybridizing and producing fertile offspring,
which further complicates their identifications
ASIAN AND GERMAN
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COCKROACHES PHE
Unlike the German cockroach, the adults fly readily and are most active
beginning at sunset when they fly to light-colored walls or
brightly lit areas. This behavior can make invasion a
nightly occurrence in homes near heavily infested areas
ASIAN
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COCKROACHES PHE
Unlike the German cockroach, the adults fly readily and are most active
beginning at sunset when they fly to light-colored walls or
brightly lit areas. This behavior can make invasion a
nightly occurrence in homes near heavily infested areas
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COCKROACHES
There are other accounts of bites around the mouths of
infants in heavily infested homes and even in hospitals.
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COCKROACHES
Bites by the SPECIES have resulted in inflammation of the skin,
degeneration of epithelial cells, and subsequent necrosis of the involved tissues.
ORIENTAL COCKROACH
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COCKROACHES
While many individuals develop a
tolerance for cockroach infestations, others may experience psychological stress.
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COCKROACHES
The level of stress tends to be proportional to the
size of the cockroaches and the magnitude of the infestation.
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COCKROACHES
An aversion to cockroaches may be so strong that some people become
irrational in their behavior, imagining a severe infestation even when there is none.
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COCKROACHES
High cockroach populations also produce a characteristic
odor that can be unpleasant or even nauseating to some people.
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COCKROACHES
given that cockroaches are so closely associated with humans and poor sanitation, the potential for acquiring
mechanically transmitting disease agents is very real.
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COCKROACHES
Allergens produced by cockroaches now are recognized as one of the more significant
indoor allergens of modernized societies.
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COCKROACHES
about half are allergic to cockroaches.
Among asthmatics,
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