Oriental Cockroach (Blattaorientalis)
The Oriental cockroach is a primarily nocturnal species of warm environments but tolerant of colder conditions. Nymphs and adults cluster in groups within harbourages when inactive. They are found indoors in heated buildings, underground heating ducts and also in drains, refuse tips and outdoors near buildings. They may even survive winter outside in protected environments but will not breed below 10 degrees. The Oriental cockroach will also climb rough surfaces and may reach upper floors via vertical ducts and lift shafts etc.
An integrated approach involving the use of cockroach traps, insecticidal gels and well-targeted use of residual insecticides where appropriate is recommended. Night time inspections may be necessary in difficult to control infestation situations.