Victor Pheromone Traps
German Cockroach Appearance
Adults are 1/2 inch- 5/8 inch long, light to medium brown with 2 dark distinctive stripes behind the head. The young (nymphs) are wingless, smaller and much darker in color, with a light stripe on their backs.
Will eat anything, will stay close to food and water source.
Habits and Biology of German Cockroaches
Females produce one egg capsule every 3-4 weeks. Each capsule contains 25-45 eggs,the largest capsule of all roach species that would infest a building. The female will carry the egg capsule with her until it is ready to hatch, making it less hazardous for the nymph to survive.
It also has the shortest period to develop from hatching until sexual maturity. The populations of German cockroaches will build up faster than other species The young (nymphs) will be able to breed in as little as 36 days. A combination of these traits produce what entomologists call a "high reproductive potential."
German cockroach nymphs are smaller than most other cockroaches; thus, they are able to conceal themselves in many places and remain protected.
Adult German roaches can live up to one year.
These roaches are mostly active at night .
If they are seen during the day, it is usually because their hiding places are overcrowded due to a large population or there is a shortage of food and water supply.
Any crack or crevice located near a source of food and/or water is prime
harborage, and they spend about 75% of their time in such harborages.
Infestations are generally found in kitchens and bathrooms, but can inhabit other areas if there is a heavy population or you have run them into each other with the repellent effect of insecticides.
The German cockroach can move well within a building. They also can travel from a neighboring apartment or location to another and can pass through small openings like light switch plates.
Many times they are brought in with grocery items, grocery bags, cartons, handbags, and luggage.
An inspection is important to find all potential harborages and a determination if it had been brought in with certain items.
If insecticides have been used in a building, their is a possiblity that the German cockroach simply scattered to another area. These harborages need to be located and treated.
It may not be possible to eliminate all the German cockroaches in a building completely if a consistent supply of cockroaches is carried into the premises via packages or food shipments.
When inspecting for German cockroaches, thoroughness is very important. It is important to place the insecticides as close to their runways and harborages as possible. Their excrement looks like black pepper.
A flashlight would be a handy tool.