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The most common cockroach in the US is the German cockroach. It has a flattened oval body with long spiny legs and measures 15 mm (3/4') when fully grown. Both male and female are winged. Color is light brown with two dark brown stripes running lengthwise on the thorax (middle section).
No. The presence of cockroaches is not normally associated with damage to buildings or to vegetation.
Yes. Cockroaches are second only to house flies in spreading disease. Because of their movements through various habitats, including refuse heaps and sewers, they are capable of transmitting diseases to man, including: salmonella bacteria (food poisoning) and many forms of viruses.
Cockroaches are attracted to food, water, and shelter. They will eat anything and are particularly attracted to starchy foods. When are cockroaches most common? Cockroaches are active year-round within structures.
Cockroaches are nocturnal and are most active at night. Any sudden light will cause scurry for shelter.
No. They can be found under the cleanest conditions, wherever food and warmth are present. For this reason they are a major problem in hospitals, hotels, restaurants, bakeries, butcher shops, multi-unit residences and homes. Their habitat is around sinks, behind stoves and refrigerators, in drains and cracks.
The German female cockroach carries an egg capsule containing approximately 40 eggs which she drops prior to hatching. Development from eggs to adults takes three to four months and cockroaches live up to a year. The female may produce up to eight egg cases in her lifetime. An infestation of cockroaches can number in the thousands.
No. These hardy and very adaptable insects are primarily indoor pests and infestations are not affected by outside temperature.
Although little can be done to prevent an infestation, the practice of good sanitation and the elimination of accessible food are ways to minimize the extent of the infestation. Careful inspection of produce or packages entering the home can help to prevent cockroaches from establishing themselves in your building.
The elimination of cockroaches is a difficult and time-consuming project. We has several products developed to help you control pests such as the cockroach.
First, few cockroaches die on their backs in the wild. Natural death of cockroaches probably occurs in the stomach of a bird, bat or other small animal.
Second, Cockroaches are not used to living on a polished marble or vinyl floor. They are more used to a ruguous living plane including leaves and sticks and other vegetable debris. Thus when a cockroach finds itself on its back (by some mistake in its orienteering) it may have trouble righting itself if there is not debris around to grab hold of with its legs. (Try it, put a cockroach on its back on a polished floor with and without some crinkled paper.)
Third, often we come across dead cockroaches in buildings that have died of insecticide. Most of these insecticides are organophosphate nerve poisons. The nerve poison often inhibits cholinesterase, an enzyme that breaks down acetyl choline (ACh), a neurotransmitter. With extra ACh in the nervous system, the cockroach has muscular spasms which often result in the cockroach flipping.
