The German cockroach is 12 to 17 mm (1/2 to 5/8 inch) long, tan to light brown, and has two dark brown stripes on the body region (pronotal shield) just behind the head.
Females will produce four to eight egg capsules during their lifetime, with each capsule containing approximately 40 eggs. The egg capsule is retained by the female until the eggs are ready to hatch, usually in 28 to 30 days.
German cockroaches are widespread and can be found in homes, restaurants, hospitals, nursing homes or apartments. Within these areas, the cockroaches prefer sites close to moisture and food, making them common pests in kitchens, bathrooms and food-storage areas. Of the cockroaches which infest structures, the German cockroach is probably found more frequently than other species.
Brown banded Cockroach
The brown banded cockroach is 12 mm (1/2 inch) long, light brown, and has two lighter colored bands running across the body. These bands are located at the base of the wings and on the abdomen.
The bands are much darker during the immature stages. The brown banded female carries the eg capsule for 24 to 48 hours before gluing it to a surface. The capsule contains approximately 18 eggs that hatch in 50-74 days. An adult female produces about 18 egg capsules over a life-span of 10 months.
The brown banded cockroach requires less moisture than other cockroaches. It is more prevalent in homes, apartments, hotels and hospital rooms than in restaurants or stores. Evidence of this cockroach may be found behind pictures, in furniture, the underside of chairs and tables, upper kitchen cabinets or the upper shelves of closets and pantries. The brown banded cockroach often infests electrical appliances such as radios, televisions, telephones and computers.
Life cycle of Cockroach
The above picture shows the life cycle of a cockroach through the three stages of incomplete metamorphosis: (1) egg, (2) nymph (3) adult. There is no inactive, non-feeding pupal stage.
Cockroaches are attracted to warm, moist environments. They spend the daylight hours in dark, secluded sites under refrigerators, stoves, false bottoms in kitchen cabinets, in the backs of cabinets and in crevices between baseboards and floors or cabinets and walls. They may also be found behind pictures or within electronic equipment. A number of these openings will ultimately lead to voids in the stud walls. The insects leave these sites at night to forage for food and water. The presence of cockroaches during the day may indicate a large population.
There are about 3,000 species of cockroaches in the world and about 50 occur in the United States. Of these 50 species, the three most common in the Northeast are the German cockroach, the American cockroach and the brownbanded cockroach.
Latest Technology (Gel Application)
In the recent past a new technique has been developed which involves controlling the Major cockroach population within the premises by applying a gel like substance. Unlike in the past, it does not require spraying those pungent smell insecticides. The biggest advantage is that there is no need to empty out the whole kitchen and create a mess. So there’s minimal disruption of the home or work place.
The mode of action involves applying low dosages of newly developed molecule called “Fipronil” at strategic location and hide-out places inside the house .This contains a Bait to which cockroaches get attracted and feed on it. Once a critical numbers of cockroaches have accepted this bait, they start contaminating other cockroaches and a cascading effect starts taking place and gradually the whole population of cockroach gets infected by the toxic ingredient present in the bait and ultimately gets eliminated.
The gel is odorless. It can be safely applied to sensitive areas such as electrical console boxes, kitchen appliances, electronic Gadgets, behind the refrigerator etc. on which those conventional insecticide cannot be sprayed. Moreover It is safe, non-irritating and presents no hazard to the living environment.
However as an supplement to the above treatment, the drains, Shaft areas, Sanitary inlets and outlets, Manholes and other utility areas of the building outside the house are sprayed using safe and effective Insecticides.
The scientific study shows, if applied Judiciously and in a appropriate manner, about 70% of cockroach population gets controlled in about a weeks time. The remaining population gets controlled in three to four weeks. For treating a typical house of about 900 sq. ft. of area it just takes about half an hours time.