American Cockroach
Appearance
The largest structure-infesting species—about 3.5-inch long. Reddish-brown wings with light markings on thorax.
Habit
Very aggressive. Prefers warm, damp areas. More likely to be seen in daytime and outdoors than other species. Commonly found in food preparation areas. It’s a scavenger and will eat almost anything.
Reproduction
Female needs to mate only once to produce many egg capsules. Each capsule contains an average of 13 eggs. Nymphs molt 13 times in about 600 days before reaching maturity. Adult can live up to 15 months.
Asian Cockroach
Appearance
The largest structure-infesting species—about 3.5-inch long. Reddish-brown wings with light markings on thorax.
Habit
Very aggressive. Prefers warm, damp areas. More likely to be seen in daytime and outdoors than other species. Commonly found in food preparation areas. It’s a scavenger and will eat almost anything.
Reproduction
Female needs to mate only once to produce many egg capsules. Each capsule contains an average of 13 eggs. Nymphs molt 13 times in about 600 days before reaching maturity. Adult can live up to 15 months.
Australian Cockroach
Appearance
Approximately 30 – 35 mm in length with yellow border on pronotum (area behind the head). Dark reddish brown in colour with light marking on the thorax.
Habits
Found mostly outdoors often in trees, wood piles. Relying on moist and decaying vegetable matter to hide in. Often located in cupboards in homes, behind draws and other food handling areas. Prefers warm humid enviorments (ie Darwin and top end of Australia).
Diet
Scavenger; eats decaying organic material. Reproduction: Females can produce 12 – 30 egg capsule in a lifetime. Each capsule is completed and dropped in about 8 to 10 days. Adults will live up to 8 months.