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Cockroaches Facts Gold Coast

Cockroaches Carry Disease
Cockroaches are carriers of helminthic worms, pathogenic bacteria, virus, fungi, and protozoans. Cockroaches are also aesthetically displeasing because they can soil items with their excrement and regurgitation
Cockroach Lifecycle

1. Copulation:

Copulation generally takes place in dark, during night.

2. Formation and insemination:

3. Fertilization and formation of ootheca (egg):

Fertilization takes place within the vestibulum of the female genital pouch. The collaterial glands pour their secretions over the inner surface of the vestibulum to form the ootheca. Sixteen eggs are laid into a single ootheca. The eggs are arranged in a double row, assisted by the ovipositor valves, very much like cigarettes in a cigarette case.

The sperms, stored in the spermatheca, fertilize the eggs when they pass from the vagina into the vestibulum for inclusion in the ootheca. More and more secretions from the collaterial glands harden the ootheca which is first white in colour but becomes pink later on. The ootheca is oblong in shape with a keel on its outer dorsal fringe.

4. Laying of ootheca (egg):

The female cockroach carries the ootheca, protruding from the tip of the abdomen, for several days, till it is deposited in a warm, sheltered and dark place.

5. Early embryonic development:

The ootheca which is laid at a suitable place by the female cockroach contains fertilized eggs. These are slightly curved, concave on one side and convex on the other. Each contains a diploid nucleus and yolk, the food for embryonic development. Each egg first undergoes cleavage resulting in a blastula, which is followed by a gastrula formation. The gastrula is differentiated into an early embryo which gets separated from the blastoderm by an amniotic cavity. Its three germ layers (the ectoderm, mesoderm and endoderm) the various parts of the nymph.

6. Hatching:

When hatching occurs, the dorsal keel of the ootheca splits and the nymphs emerge out leaving the egg membranes within the ootheca. The freshly-hatched nymphs are delicate, transparent and almost colorless creatures with black eyes. They possess nearly all adult characters but differ in size and colouration, in being sexually immature and lacking wings.

7. Metamorphosis:

Immediately after hatching, the nymphs undergo first moulting or ecdysis and then five or six successive moults follow. As nymphal development proceeds, the wing pads arise, body increases in size, colouration becomes darker and ultimately the takes its form with fully developed wings and genitalia.

For more details read

Cockroach Treatment Gold Coast

Cockroaches found on the Gold Coast

Smokey Brown Cockroach

 

Shining dark brown in colour. Wings longer than the body in male; only just overlap abdomen in female.

 

  • Nocturnal (hides during the day in cracks and crevices or any other dark warm places).
  • Lives in trees, under bark, under flooring, and enters buildings at night time.

Australian Cockroach

Females deposit the ootheca (egg case) containing 24 eggs a day after production.

  • Enter buildings at night from gardens/debris.
  • Generally prevalent in areas where winters are relatively mild.
  • Despite its name, it isn’t a native species.

Oriental Cockroach

The wings undeveloped in female and cover ¾ length of the abdomen in the male. They are dark brown and black in colour.

  • Oriental cockroaches thrive in cool, damp areas such as basements, drains and openings beneath porches.
  • Runs rather than flys.

German Cockroach

German cockroaches are easily identifiable by 2 dark longitudinal stripes on their pronotum.

  • Most commonly found indoors.
  • Prefers wet, humid conditions and are typically found in kitchens and bathrooms in homes and commercial properties.

American Cockroach

Shining red–brown in color. Wings longer than the body in male; only just overlap abdomen in female.

  • American cockroach prefers dark, humid and undisturbed areas and can be found in subfloors, basements, kitchens, roof voids and bathrooms of homes.

Brown Banded Cockroach

One of the smallest pest cockroaches, brown banded adult cockroaches. Characterised by yellow-brown stripes across their abdomen.

  •  Preference for warm and humid environments leads them to live in heated buildings – ceilings, attics, inside and around appliance motors.