There are several insects that are widely disliked by people, and which could be considered the most hated. Here are a few examples: Cockroaches: These creepy crawlies are often associated with dirt and disease, and their fast movements and ability to fly can be unsettling. Mosquitoes: Mosquitoes are notorious for their irritating bites, which can cause itching and discomfort. They are also carriers of dangerous diseases such as malaria, dengue fever, and Zika virus. Bed bugs: These tiny insects feed on human blood while we sleep, leaving itchy, red bites in their wake. They are notoriously difficult to get rid of and can cause significant stress and anxiety. Wasps: Unlike bees, which are generally viewed as beneficial pollinators, wasps are often seen as aggressive and dangerous. Their stings are painful and can cause severe allergic reactions in some people.