There are a great many different species of cockroach throughout the world but only a small number are of concern and present any significant issues in the UK.
As a group, cockroaches follow an incomplete metamorphosis. The female produces an egg case (ootheca) containing a variable number of eggs, these hatch into nymphs which closely resemble the adult insects.
All stages are omnivorous and require a supply of drinking water or food high in water content. The insects are active at night and cover large areas to scavenge for food.
These insects are difficult to eradicate and require a planned approach due to egg cases being resistant to treatment and long incubation times for eggs. Treatments can involve surveys with sticky monitors and night inspections If needed. Our technicians may use a variety of treatment options including baits and residual insecticides depending on the location of the issue
Females lay 5 ootheca each at different intervals, with each one containing around 16 eggs. These are dropped by the female in areas of harbourage and take around 6-12 weeks to hatch depending on temperature. Once hatched the nymphs go through 7-10 moults across a period of up to 18 months to reach maturity.
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