What are the big red spiders on my porch?

Question: What are the big red spiders that are outside on my porch?

Answer: Assuming that these spiders are in webs, or maybe in plants around your porch, you probably have an orb-weaving spider. It could possibly be a red orb weaver (Araniella displicata), which is a harmless spider. This is a large family of spiders, and several hundred species are found in the U.S. Almost all of these spiders spin a large and sometimes complicated web of concentric rings. They often locate the webs on the sides of houses or on trees and shrubs, especially near outdoor lights.

Orb-weaving spiders are often brightly colored and attract attention as they sit in or near their web. They are waiting for prey to become stuck and shake the strands.

Some of the most dramatic of the orb weavers are the spiders in the genus Argiope. These spiders are striped black and orange, or black and white. They construct large webs that have a zig-zag pattern of silk in the center of the web. They are usually found hanging head down in the center of the web.

While orb-weaving spiders are large and look threatening, they are not aggressive to people. Certainly, you can be bitten if you try to handle one of these spiders, but they will usually try to get away from people. When their web is damaged, the pests will usually leave and rebuild it somewhere else.

Limiting the use of outdoor lights at night can help reduce the number of flying insects that gather there. These insects are the food for these and other spiders around the outside of the house. Changing porch lights to the yellow "bug light" bulbs may help. It is sometimes necessary to place curtains or shades on windows to reduce the amount of light that shines out to attract flying insects. While the spiders are pests inside homes, outside they are beneficial, as they prey on insects that may even cause harm to your plants.

If you would like assistance, call Orkin to schedule a home inspection. We can set up an inspection of the inside and outside, and recommend a treatment plan to eliminate conditions and food sources that may be attracting these spiders.

Ask Orkin

Get More Answers from Orkin

Difference between a cellar spider and a brown recluse spider?

Q

What's the difference between a cellar spider and a brown recluse spider?

Causes of a bed bug infestation. Hotel? Used Furniture?

Q

To my knowledge, bed bugs don't just disappear, which is what makes me think that they may be bat bugs or bird bugs. Help!

My carpet has been chewed by rats

Q

What could have done this? Would it be in the house?

Carpet beetle in dorm room

Q

I'm freaking out that they may be bed bugs or something. Can you please tell me what this is?

I have a carpenter bee infestation

Q

Does Orkin take care of carpenter bee problems? What do I have to do to get rid of them?

Can you spray for rats?

Q

I work in a granite shop, and we have a lot of rats. They are big and ugly. I wonder if there exists any spray or something similar which can kill rats.

Can bed bugs come through the walls?

Q

I live in an apartment, and there is a unit in the same building that has bed bugs. They have sprayed that apartment, but will that kill them? Can bed bugs come through the walls?

Can ticks live in the house?

Q

Can ticks live in the house?

Can termites eat through concrete?

Q

How large of a crack in concrete is needed for termites to access?

Can roaches be eliminated from a dwelling completely?

Q

I have a few months left in my lease, but I need this issue addressed before moving. Can roaches be eliminated from a dwelling completely?

Connect with Us

Our customer care team is available for you 24 hours a day.

877-819-5061

Find a Branch

Our local technicians are the pest experts in your area.

Get a Personalized Quote

We will help you find the right treatment plan for your home.

Home is where the bugs aren't™

SERVICES

Pest ControlTermite ControlPrevent and Protect

PEST LIBRARY

Browse All Pests

© 2021 Orkin LLC

Terms of UsePrivacyAccessibility StatementCareers