Cockroaches

They are usually medium to large in size, flattened and mostly oval in shape. Cockroaches have long and slender thread like antennae, legs well suited to running, well developed compound eyes and chewing mouthparts. Wings may be well developed, reduced or absent.

Only six of over 4000 species of Cockroaches are serious pests to homeowners in Australia. Cockroaches are organisms that due to their activities may carry diseases and may transmit diseases to people. They usually reside in dark, humid places and are mostly nocturnal, resting during the daytime in cracks, crevices or warm motors of appliances. Some species are capable of flight.

Many environments provide exploitation for food and shelter. Some places provide year round warmth, food and shelter which may provide homes for thousands of cockroaches. Cockroaches eat stored foods and other materials. They are capable of contaminating foods and food handling areas with droppings, cast skins, egg sacs, regurgitation marks and odours.

The most common species encountered are the American (Periplaneta Americana spp.), Australian (Periplaneta Australasiae spp.), German (Blattella Germanica spp.), Oriental (Blatta Orientalis spp.), Smoky Brown (Periplaneta Fuliginosa spp.) and the Brown Banded (Supella Longipalpa spp.).

German Cockroaches can be a major problem in kitchens and bathrooms, they are prolific breeders and during warmer months population growth explodes. They can live in refrigerators and in ovens as well as the smallest crack and crevice. They are a relatively small cockroach with nymphs (young insects) the size of a pin head to adult up to 25mm.

Australian, American and to a lesser degree the Smoky Brown cockroaches can be found throughout a building. They are much larger than the German roach up to 55mm and they fly at night.

Oriental roaches can be found in gardens and also in bird nest material in roof voids.

Treatment Methods Available:

Treatment varies according to the particular species but generally Cockroaches are controlled by a range of methods including application of liquid residual sprays, dusts and gels. The treatment is usually applied to cracks and crevices particularly to actual or potential harbourage areas.