Cockroaches are one of the most successful insect species on the planet even though they cannot fly. Cockroaches are nocturnal feeders and rest during the day in dark moist areas within your home such as cracks and crevices, furniture, fixtures, inside washing machines, fridges and freezers as well as outside in the drains, manholes and waste gullies.
Cockroaches are known carriers of serious diseases, such as salmonella, dysentery, gastroenteritis and other stomach complaint organisms. Contamination occurs when they come into contact with food preparation areas, cutlery, crockery and food. Cockroaches must moult regularly throughout their life-cycle. The discarded skin becomes airborne and can cause severe asthmatic reactions, particularly to children, the elderly and people with bronchial ailments.
German cockroach (Blattella Germanica)
German cockroaches have an exceptional ability to climb walls and ceilings and are commonly found in restaurants, blocks of flats and food preparation areas. In the home they are mainly found in kitchens and bathrooms. The adult cockroaches are yellowish-brown in colour and 10-15 mm in length, with two dark longitudinal marks or stripes.
Oriental cockroach (Blatta orientali)
Oriental cockroaches can infest premises for long periods before they are discovered. They are unable to climb and can be found outside in the drains, manholes and waste gullies as well as indoors. The adult cockroaches are reddish-brown in colour and 20-25 mm in length. The female cockroach produces up to eight purse-like egg cases at monthly intervals. The egg cases contain between 16-30 nymphs, which are laid throughout the building 8 weeks before they are due to hatch. This can make eradication very difficult.
Treatment for Cockroaches
An inspection and risk assessment is carried out. Depending on the situation, the initial treatment is either by insecticide gel or spraying followed by a second treatment after 3-4 weeks. We also advise clients of any household management that could help prevent further infestations. For example, where there are multiple dwellings in a building, all the surrounding dwellings also need treatment in order to avoid re-infestation.