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German Cockroach

Identification & Biology of

German Cockroach

  • 12-16 mm long
  • Wings slightly longer than the body
  • Fast runner/climber
  • Light/dark brown in colour
Pest Control - Pests
The female carries the ootheca (egg) until hatching. 4-8 ootheca (eggs) are produced each containing 30-40 eggs. In other words one female cockroach could potentially produce up to 320 cockroaches.


German Cockroach

live & how they affect you:

German cockroaches can be found anywhere throughout buildings, but they do prefer warm humid places. They live in small cracks and crevices often near their food source. These cockroaches are good climbers and they are often found high up on walls. Once these cockroaches have entered premises, an infestation is quickly established. They are an extremely serious pest & are dangerous to human health & well- being. They spread diseases such as salmonella & will eat anything including human waste.

Control Measures for

German Cockroach

Cockroach traps should be sited to determine the extent of the infestation. Successful treatment depends upon the method & thorough application of an appropriate insecticide. The insecticide must be positioned in & around harbourages where the pest likes to hide & maintained weekly over the developmental period. Once placed in infested areas, the cockroaches will feed on the gel baits & make contact with a lethal dosage of insecticide. Gel baits offer the opportunity for on- going control of cockroaches over prolonged time periods. They can also be combined with the usage of surface or spray treatments & contact dusts.

German Cockroach

- Helpful Tips:

Hygiene is of key importance to the control of cockroaches & the following is necessary to eliminate the problem:

  • Prevent access to food & water, this ensures that the cockroach has to move in the direction of insecticides placed.
  • Block any harbourages, which create the ideal hiding place for breeding sites.
  • Create accommodation that is easily cleaned, to avoid the accumulation of debris.
  • Check any incoming materials, including packaging & laundry.
  • Good ventilation systems will speed up the dehydration of the insects & will hinder the operation of antennal chemoreceptors.