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- Fecal droppings. Once you start to find cockroach feces is a sure sign you have a problem. Smaller cockroaches will droppings behind that look like coffee grounds. The more droppings you discover the worse the infestation.
- Egg casing. Cockroaches produce egg cases which hold tons of eggs. Finding even one hatched or not means that you probably have a significant cockroach infestation.
- Odour. A large number of cockroaches omit a certain odour. A small infestation might not be noticeable, but larger groups will certain stand out. The smell is described as oily and musky.
- Dead roaches. They’re nocturnal so seeing them during the day is difficult. Finding dead roaches under your sink, in your cabinets, under your stove and around your fridge means a big problem.
- Roaches during the day. The only reason you might see them in the day is if the number is so huge that they get pushed from the nest.
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