The German cockroach is one of the most common roaches found in apartment houses, restaurants, and hotels. German cockroaches, are "brought in", usually on man's belongings, luggage, boxes or packages. All it takes is bringing in one egg capsule and a month later an infestation occurs. In commercial buildings, like apartments, hotels and restaurants, a slightly more aggressive approach is often used.
German cockroaches are a pest control challenge because they’re the most prolific breeders among all cockroaches. They hide in your bathrooms and kitchen to be as close as possible to food and moisture sources.Successfully killing these cockroaches requires persistence and experience. Off-the-shelf products are often not enough. Contact the professionals Commercial cockroach extermination Inspection When inspecting for German cockroaches, thoroughness is very important. The cockroach's excrement looks like black pepper. Cockroach control in commercial buildings is generally more difficult because its hard to control what happens in every part of the building. There may be areas of the building that are not cleaned and treated, for whatever reason, and these can serve as continual sources of cockroaches that re-infest the building. Therefore it may be necessary to treat areas that are accessible with residual insecticides and then aggressively use professional baits to disrupt the populations in the parts of the building that are not accessible. Use the check list guide for a Cockroach control program Roaches do not form true colonies the way termites and ants do and often live in groups. The roaches prefer warm and damp areas in out of the way protected places such as inside walls called harborages. Roach activity is usually highest at night. In fact, any activity in the open, during the day typically indicates very high populations with individuals actually pushed out of harborages because of overcrowding. Therefore, cockroaches activity during the day usually means that the infestation is fairly large. Cockroaches may become pests in homes, schools, restaurants, hospitals, warehouses, offices, and virtually in any structure that has food preparation or storage areas. Contaminating food and eating utensils, occasionally damage fabric and paper products, leave stains on surfaces, and produce unpleasant odors when present in high enough numbers. To be effective, traps must be placed where cockroaches are likely to encounter them when foraging. The best places are at the junctions of floors and walls and close to sites where cockroaches are suspected. Good potential monitoring sites can be determined by accumulations of the evidence that cockroaches leave behind. Common signs to watch for are fecal matter (e.g., dark spots or smears), cast skins, egg cases, and live or dead cockroaches. Place traps in all corners of the room to give an idea where roaches are entering. In the kitchen put traps against walls behind the stove and the refrigerator and in cabinets. It is often a good idea to number the traps to keep records for each trap separately. Check the traps daily for several days until it is apparent which locations capture the greatest number of roaches. This will usually occur within the first 24 hours of placing a trap. Discard sticky traps by placing them in a sealed plastic bag in the trash. Keep records of roaches trapped in different locations before and after initiating a management program to evaluate its success. Exclusion and Removal of Roach Hiding Places in commercial kitchens and apartments During the day cockroaches hide around water heaters, in cupboard cracks, in or behind stoves, inside crawl spaces, deep within outdoor vegetation, and many other dark locations. Limiting hiding areas or avenues of