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The world of insects is diverse. Some of them often become our companions. Imagine this: after a tiring day at work, you finally settle down in front of the TV to watch your favorite show. A minute or two passes—and suddenly your attention shifts from the bright screen to a dark speck slowly crawling up the wallpaper. A woodlouse?!
Smoke bombs were originally used for military purposes: in real armies, they're used to transmit signals over long distances when there's no signal, to camouflage targets during maneuvers, and in other situations; children use homemade smoke bombs to intimidate. And relatively recently, this type of pyrotechnic has also come to be used to control insects, including bedbugs.
For modern humans, a rat crawling out of a toilet bowl is like something out of a Fantastic Beasts movie. Unfortunately, however, the sad facts suggest otherwise—rodents remain human companions even in the 21st century. Rat raids in warehouses and vegetable storage facilities don't frighten people as much as encountering even a single rat in their own apartment. It's important to know that no matter where these animals settle, they won't leave voluntarily, so control must begin immediately.