Spiders are arachnids, not insects. We can get rid of spiders by so many commercial spider sprays.
Spiders don’t bite people very often. There is a belief that spiders come into your bed and bite you during the night. Spiders are a species of insects that have eight legs, two body regions and fangs to inject venom. There are an immense variety of spiders that have been identified around the world. Spiders usually have three or four pairs of eyes. They do not have chewing mouthparts and they use their saliva to break their prey and consume it. All spider species are predatory insects except one species that feed on plants.
Spiders are fed on insects who are carrying diseases and those can be transmitted to humans as well as animals. When there are spiders many spiderwebs will appear inside or maybe outside. It will give an unattractive appearance to the house and sometimes those spiderwebs will leave smudge marks on walls.