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Less widely distributed than the Oriental
Cockroach. In temperate climates, P. americana is limited to heated
buildings and port facilities. Distribution in warm climates is wide. Drains,
sewers bins and refuse areas provide habitat in these areas. |
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The American Cockroach |
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Due to it's need for heated conditions in
temperate zones, P. americana is generally limited to animal houses, zoos,
greenhouses and other constantly heated premises. In warmer areas, no such
restrictions apply, although in the US the German Cockroach is the main Dictyopteran pest. |
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Incomplete metamorphosis life cycle.
Oothecae are produced at 4 - 7 day intervals and are held by the female for approx. 24
hours before being deposited. Hatch will occur at 1 month under optimum
conditions. Oothecae generally contain 16 eggs. Nymphs pass through an average
of 10 instars. Life span extends up to 1 year. |
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As with all cockroach control programmes, an
integrated approach involving the use of monitoring traps, insecticidal baits and well
targeted use of contact insecticides where appropriate is recommended. Night time
inspections may be necessary in difficult to control infestation situations in order to
identify key harbourage areas. Harbourage denial and proofing are also effective. |
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