Cockroach is an insect normally found in household environment; the most common spices found are German cockroach, American cockroach and Australian cockroach. Their lifecycle includes 3 stages: eggs, larva and adult, with the process of molting; newly molted cockroaches are in white or pale-whitish color. They prefer warm and moisturized environment, such as behind stoves, around hot pipes and sinks. Cockroaches are nocturnal which in favor of limited intervention during the day. Their scent glands produce a secretion with special smell and in brown-yellowish color; they leave secretion on places they are passing through. Also, their feces and shells cause allergic reaction to human.
American Cockroach
The adult form is in red-brown color, with a yellow line to separate the body and head; they prefer warm moisturized places, such as kitchens, restaurants, between walls and gaps on celling, they can also easily be found in garbage and sewers. Adults can live up to 365 days.
German Cockroach
Slightly smaller than American cockroach, light brown on the back with 2 stripes go from the head to the end of wings. Although German cockroaches are equipped with wings, but they rarely fly. They are also omnivore, fed on carbohydrate, sugary food and flesh, etc. With an average life span of 120 days.
Australian Cockroach
The body is brown in color with yellow on the edges, equips with 2 shades wings: brown on top wings and red-brown on the lower wings; they can also be identified by their distinctive red stripes on the front wings. Their legs are brown with tiny thorns on them. Australian Cockroaches are easily mistaken as American Cockroach. They can rarely be found in kitchen, as they prefer rotten plants as food. They can live up to 150 days.
Methods to prevent cockroaches
First thing to do is to cut off cockroaches’ food source; keep the living place dry and clean (especially for the kitchen area). All garbage and food waste must be put in a covered bin and cleared out everyday.
Clear unnecessary stuff in the house, such as piles of newspaper and magazines.
Perform a massive household cleaning every season, including areas behind furniture and decorative ceiling, pipes and sockets; also, fill up cracks on wall and floor.
If the situation has gone out of hand, use pesticide on area where cockroaches are found. Pesticides are normally residue; the infected cockroach would carry the pesticide around and back to their nest to terminate other cockroaches.
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