In our world, thousands of pests can enter your home, some more harmful than others. It can be challenging to differentiate between the dangerous and non-dangerous, which is why enlisting the help of an experienced exterminator is a wise choice. In this blog, our pest experts will outline the top most dangerous pests and why you do not want them cohabitating with you and your family.

What Classifies a Pest as Dangerous?

When referring to pests as dangerous or harmful, it relates to a few things.

  • They are detrimental to your health
  • They are destructive to your property
  • They pose a threat to the safety of your household

5 Most Harmful Pests


More homes fall victim to these arthropods than house fires each year, causing over $5 billion of damage. Although seemingly harmless to humans, they have the potential to cause irreversible damage to the structure of your home by chewing through the wood within. If you suspect termites are taking over your house, act fast before the damage becomes too severe.

Bed Bugs

These expert hiders are known for seeking refuge in mattress covers and fabrics in your bedroom. Their thin body allows them to crawl through small openings and become unnoticeable until you get bit. Not only do these pests decrease livability within your home by soiling your bedding and furniture, but they also use your flesh for food while you sleep.

Even more frightening, they can transport to other people’s homes by hitching a ride on your clothing. While their bites are not usually harmful, they can trigger an allergic reaction requiring medical treatment.


Not only are cockroaches repulsive, but they also pose a severe health risk. Research shows that children who grow up in homes with cockroaches are far more likely to suffer from asthma and allergies than those who do not. Why? You ask. Well, their feces and shed skin carry pathogens that trigger these illnesses.

It is vital to rid your home of these creepy crawlies before the infestation multiplies, as they can reproduce at record speed. A female roach will lay about 16 eggs every month for ten months. These eggs then hatch within a week, causing the reproductive cycle to intensify the population numbers dramatically.


Rats and mice are some of the most unhealthy and harmful pests. Their presence should never be ignored, and you must take immediate action. Not only can these vermin reproduce at a rapid pace, but they also distribute dangerous bacteria on all surfaces of your house. Estimates show that a single mouse leaves behind 3,000 microdroplets of urine a day. They are capable of spreading salmonella and other deadly viruses and bacteria.

Additionally, mice and rats use your walls and furniture as chew toys to help maintain their teeth. Their pearly whites continue to grow throughout their entire lives, causing the need to chew to prevent their teeth from growing too long.

While poisons are effective, they can result in the animal dying between your walls or in your attic. For minor infestations, traps are most effective. If the population is too significant, enlisting the help of experienced exterminators is the best plan of action.


As one of the most common household pests, spiders are vital for our ecosystem by helping keep roaches, mosquitoes, and other pests at bay. However, spiders can harm humans if they are poisonous. Most spiders found in the US are not poisonous. The only two species that do pack a deadly punch are the Brown Recluse and Black Widow. If you do happen to find either of these in your home, call an experienced professional who can safely relocate it to save you and your family from potential harm.

Spider webs are not desirable to walk into while in the comfort of your own home. If you notice yourself running into them frequently, you might want to stay aware that you could be sharing a living space with multiple spiders. The presence of arachnids is also a tell-tale sign your house may be housing other creepy crawlies. Since insects and small animals are spiders’ primary food source, they will flock to areas where food is readily available.

Rid Your Home of Harmful Pests

All kinds of pests can be a threat to your home and health, which is why you need an efficient and effective pest control team that has your back when pests try to move in. That’s where the Econex Pest Management team comes in. Contact our pest control experts today at (888) 508-4205.

What Pests Cause The Most Harm to My Home? Serving Yorba Linda & Anaheim

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