- Colour Light brown to tan
- Size From 13 mm to 16 mm long as adults. Immature or young can be as small as a few mm long.
- Description Have long, wide, and flat bodies, with six legs and two long antennae protruding from the head. They also have two dark longitudinal lines on the shield behind their head.
- Notes They are not able to fly.
Why do I have German cockroaches?
German cockroaches are the most common cockroaches in Canada and like warm, humid environments with easy access to food, water, shelter, and a safe place to reproduce.
They typically invade areas in and around appliances, bathrooms, under sinks, dishwashers, medicine cabinets, mop closets, false ceilings, and anywhere food may be kept overnight, like storage closets and pantries.
They don't usually move from one building to another, but can be brought in within shipments and packaging.
Like other cockroaches, they will eat practically anything, but do prefer sugary foods, grease, starch, and meats. In heavily infested buildings, they may resort to eating glue, packaging materials, and even fellow cockroaches.
How worried should I be about German cockroaches?
German cockroaches can make food inedible with their feces and defensive secretions. They carry pathogenic organisms on the feet and legs and transmit intestinal diseases, like diarrhoea, dysentery, typhoid fever, and cholera.
People who suffer frequent and prolonged exposure to cockroaches can develop mild to severe allergic reactions, including dermatitis, itching, swelling of the eyelids, and serious respiratory conditions. In heavy infestations, German cockroaches can even bite humans.
However, German cockroaches reach adulthood faster than any other cockroach species in Canada, taking only 10 weeks to develop from eggs into fully grown adults. They can live for up to seven months, and females can produce up to 350 eggs in her lifetime.
This means a single female German cockroach can spawn tens of thousands of descendants in just one year. They populate homes quickly and infestations can swiftly become hard to control. To truly eradicate German cockroaches, you need a professional pest control service.
How can I prevent German cockroaches invading?
Vacuum all cracks and crevices, Clean up crumbs and spills promptly, Do not leave food or water out overnight, Sweep or vacuum up food and debris on floors, Clean counters, sinks, and tables with soapy water, Take out trash in closed plastic containers, Keep waste containers washed and clean, Wash dirty dishes and utensils immediately, Fix leaky faucets and water pipes, Increase ventilation to prevent condensation
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