The German cockroach is probably the most economically important pest. It is the most common cockroach you will find in a home or business. The German cockroach can be found in homes, apartments, hotels, motels, restaurants and other places throughout Ontario. There are other cockroaches that might be found more in other areas but the German cockroach is by far the most common species infesting homes and other areas.
Cockroaches can survive on very little carbohyderate food. But they must be able to maintain their body moisture. That’s why they live in tight spaces where the air hardly moves.
Appearance of German Cockroaches
The adults are about 1/2 to 5/8 inches long and have two dark stripes. Both sexes have wings but do not fly. Males can be distinguished from females by a tapering shape of the abdomen.
German cockroach babies, called nymphs, look like adults except they are smaller, have no wings and are darker in color, sometimes even black. One stripe running down the middle of the back is a prominent marking of the younger German cockroach nymph.
The female German cockroach carries the egg capsule protruding from her rear until the eggs are ready to hatch. The German cockroach is the only house-infesting species that carries the eggs capsule this long. This is what makes it the most presistant cockroach in the United States because they are less likely to be taken by predators.
German cockroaches usually hide in areas where there is ample food and moisture such as kitchens and other food areas but they can be found in other areas if they are stressed and as a result of a repellant insecticide somewhere else in the building or home. German cockroaches are attracted to fermented foods and beverage residues. If water is present, adults can live about a month without food, but young nymphs will die of starvation within 10 days. Without food or water the adults will die in about 2 weeks.
We suggest a commercially registered insecticide Bait application to exterminate German Cockroaches.
Bait: It is a very palatable substance placed strategically so that the German Cockroaches may find it easily during the foraging activities. These pesticides are commercially registered with the ministry of the environment, and can only be deployed by a licensed exterminator. Once German Cockroaches ingests the deployed substance as a meal, it is considered to have had a lethal dose.
The bait is not instantly lethal to the German Cockroaches. The advantage is that the bait will reach into German Cockroaches nesting areas and will affect all German Cockroaches. German Cockroaches would likely die off in the nesting areas and not in our living spaces. Since most baits are formulated such that they do not cause any immediate discomfort to the German Cockroaches ; they are likely to have multiple feedings and encourage other members to feed as well.