Cockroaches present one of the most significant public health risks, carrying diseases such as dysentery, gastroenteritis, diarrhoea, typhoid, poliomyelitis and salmonella.
They are most commonly found in commercial premises in which food is produced or handled, such as restaurants and catering establishments. However, they are not uncommon in domestic situations where they live in kitchens and drains.
Cockroaches are nocturnal creatures, which spend the daytime hours hiding in cracks and crevices around sources of food and water such as cookers and sinks.
Complex pipework systems and underground ducts in larger buildings can make their control all the more difficult. Food contamination occurs when the cockroach moves from refuse to food preparation areas.
Cockroaches will eat practically anything from human food to leather, wallpaper and even other cockroaches.
Common name: German cockroach
Length: 12 -
Colour & description: Yellowish, brown with two longitudinal black streaks on pronotum. Winged but do not normally fly.
Habits & habitat: Primarily nocturnal. Prefer warm & humid conditions. Prefer narrow harbourages close to food & water. Can climb smooth surfaces. Female carries the ootheca attached to her abdomen until the nymphs are about to hatch.
Life cycle: 100 -
Common name: Oriental Cockroach
Length: 17 -
Colour & description: Very dark, almost black in colour. Have wings that do not cover the abdomen, do not fly.
Habits & habitat: Fond of dark, hidden, damp cool places such as cellars/basements. Therefore, some harbourages maybe outside of the treatment area making control difficult. Mainly active in the night & at dawn. Are cold weather tolerant.
Life cycle: Up to 500 days
Reproduction rate: Females produce up to 10 capsules over lifetime. Each case containing 14 -
Common name: American Cockroach
Length: 25 -
Colour & description: Reddish wings completely cover abdomen. Yellow band around pronotum edge. Are able to fly.
Habits & habitat: Prefers dark, hidden, hot and humid places. Often present where food is stored & prepared. Some harbourages maybe outside of the treatment area making control more difficult.
Life cycle: 450 days. Reproduction rate: Females produce 9 – 10 egg cases over lifetime. Each containing 12–16 eggs
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