Common UK cockroaches
In the UK, you'll mainly find two types of cockroaches:
- German Cockroach
- Oriental Cockroach
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Cockroaches are large insects, ranging from 10-23mm, with long antennae and two pairs of wings. The German Cockroach is dark brown and can climb smooth surfaces, while the Oriental cockroach is black.
Health risks of cockroaches
Cockroaches can spread diseases like dysentery and gastro-enteritis as they can carry food germs on their bodies. They contaminate food and surfaces, sometimes even with faecal matter.
Cockroach life cycle
Females produce up to eight egg cases monthly, each containing up to 30 eggs. Nymphs hatch in 2-4 weeks for German cockroaches and 6-12 weeks for Oriental ones. Nymphs resemble smaller adult cockroaches.
Identifying a cockroach problem
Look for egg cases, similar in size and shape to a small kidney bean, and brown in colour. Cockroach faeces may also be visible, resembling black pepper.
Cockroach habitats
They're often found where food is stored or handled, hiding in cracks during the day and active at night. They'll quickly hide when exposed to light.
Preventing cockroach infestations
Keep premises clean, remove food sources and hiding spots. Seal small cracks with latex or silicone and patch larger holes. Keep areas free of debris and rubbish.
