Go to the USA Southern States if you want to see cockroaches. Holy shit, man! The warm weather and humidity are like steroids to them. They get as big as a mouse, and they don't care if you have the cleanest building in the world, they're still going to invade and wake you from your sleep by crawling on your face.
Those American Cockroaches don't breed indoors though. They are transients and are relatively benign compared to the German roaches which will fine the single square mm of your home without pest treatment and then evolve resistance to it.
To be fair, they really originated elsewhere, but Germany certainly has cockroaches. I think Germany is probably too cold for them to be a big problem, though.
They eat anything that is smaller than they are legs included. They'll eat anything from bed bugs to spiders. I even saw one chewing of a wasp at one point.
yeah, they were first believed to have originated from germany; currently science places them as an southeast asian expatriate with a pit stop in NE africa. It's too cold for them to live outside of human settlements in germany, although i'm pretty sure that will change in the next years, and then the name fits at last.
Very much so but people often kill them for looking nasty. When in reality they totally depend on humans to survive. And provide nothing else than benefits to us. They need warmth of our homes and very specific climate. They can't survive outdoors.
By their nature they won't actually eliminate an infestation. They are territorial so they won't ever have the population numbers to eliminate populations of other bugs. They are, at best, an indicator that you need an exterminator soon.
Depends what you mean by cockroach. I haven't seen the pests around. But there are some smaller ones that are sometimes also found inside the house. I frequently find this one in my home for example, which is really cute <3