Southeast Michigan Exterminator
(248) 457-5233

Pest Management Services

Black Widow Spider

Boo! Spiders, the Halloween Pest.

Part One

If you have noticed an increase in spiders lately in and around your home, those webs you see might not be your clever Halloween decorations. There is another reason, it’s that time of year; it’s spider season!

 It’s October, and as you drive around your town you see creative Halloween decorations on nearly every road. Spiders are creepy.  They have eight legs, they dangle from ceilings, and create webs to catch their food. Enormous cobwebs and giant spiders make the perfect Halloween decorations, and we often associate their dark color and creepiness with old, spooky haunted houses.  There is even an old superstition that believes seeing a spider on Halloween meant the spirit of a dead loved one was watching over you and your home!

While some people might like the idea of a familiar spirit protecting your home from danger, for those of us who are more scared of spiders than evil spirits we wanted to provide you with some information that you might find useful to help understand spiders.  We wanted to provide you with some DIY tips, and educate you on identifying the types of spiders in Michigan and help recognizing them. We also want to assist you in making the decision about whether it is time to seek the professional help of Presidio Pest Management if you have spiders in and around your home. 

This is a LOT of information, so we are going to do a three-part series over the next three weeks on these topics. Today we will focus on identifying the different species of spiders in Michigan. Next week we will focus on common areas and locations spiders find desirable, and for our third part in our series, we will focus some DIY tips to try.  We want to help you to keep spiders outside and not in your home!

The vast majority of spiders in Michigan are not venomous or dangerous, however, according to the Michigan Department of Natural Resources, there are two species of venomous spiders found in Michigan: the brown recluse and the black widow.  

The brown recluse is not indigenous to Michigan and cannot live in temperatures colder than 40°F, so they are extremely rare in our state. It is believed that they have come in on trucks originating in the southern United States. The brown recluse is unusual because it has only six eyes (most spiders have eight) and has a violin-shaped marking on its back.  The violin pattern is seen with the base of the violin at the head of the spider and the neck of the violin pointing to the rear. These small non-hairy spiders are yellowish-tan to dark brown in color with darker legs.

The northern black widow, on the other hand, is native to Michigan and can be found all throughout Michigan, especially in the western lower peninsula. The black widow is small, only about a 1/2 inch long (1.5 inches if you include the legs). They are entirely black except for a bright red, hourglass shaped marking on the abdomen of the female (note that the hourglass marking is broken in the middle). Males will lack this distinctive hourglass marking, but may have red or yellow bands on their back or abdomen.

Below are descriptions and information of the most common spiders Michigan residents are more likely to encounter in their homes.

Common House Spider: They vary in size from 6mm to 2.5cm and may be a variety of colors, though they always have rather dull hues, allowing them to blend into their environment. They feed on such household pests such as flies, mosquitoes, wasps and ants. House spiders will bite if cornered or grabbed, but their bites are relatively non-toxic and no more painful than a bee sting.

Wolf Spider: Like house spiders, wolf spiders may vary in size, though on the larger end they can be quite a bit bigger than house spiders, up to 1.2 inches; their bodies may be a little bit larger relative to other house spiders. Like house spiders, they may be any variety of dull colors, though they are usually some hue of brown. Wolf spiders are active, agile hunters. Rather than spinning webs and waiting for prey, the wolf spider hunts its prey, chasing it and pouncing upon it.

Daddy Long-Legs: They are easily identified by their extremely long legs. This spider is commonly found indoors, especially in cellars and basements. Contrary to popular belief, the daddy long-legs (cellar spider) is not venomous. Daddy long-legs prefer to live on ceilings and will commonly make their webs in the corners of living room ceilings, but also in garages, cellars or under eaves. It preys on mosquitoes, other spiders and even other daddy long-legs if food is scarce. They are non-aggressive, will rarely bite and pose no significant danger to humans.

Orb-Weaver Spider: These orb-weaver spiders build the spiral wheel-shaped webs often found in gardens, fields and forests. There are over 10,000 varieties of orb-weaver spiders in the world; in fact, they make up 25% of all spiders worldwide. The orb-weavers are tremendous workers, sometimes building a new and complete web from scratch every single day. Orb-weaver spiders are also common in barns; orb-weavers do not generally take up residence in homes as often as house spiders and are usually not a problem.

Jumping Spiders: a very large branch of the spider family. Jumping spiders are common both indoors and outdoors throughout the United States. They take their name from their method of hunting prey by leaping quickly upon it, jumping up to half an inch and pouncing upon prey. Jumping spiders usually have larger eyes than other species and have more hair. They usually grow no larger than one inch and are a dull, earthy color.

Most people concerned about spiders in the home are worried about spider bites. Except for the black widow and the rare brown recluse, none of the other spiders in Michigan pose a threat to human health from their venom. This is not to say that other spiders will not bite; any spider will bite, and even the bites of non-venomous spiders can be painful. Spiders will bite if they are picked up or handled, but most spider bites do not occur in this manner. A more common manner of getting bit occurs when people are bit in their sleep. A spider will be prowling about under the covers, attracted by the warmth and darkness. A person sleeping will unknowingly roll over or move and frighten the spider, which will then bite the sleeper before scampering away. The person wakes up with a painful bite, sometimes mistaking the spider bite for bed bugs.  Another concerning threat are spider eggs, if a spider is allowed to freely lay eggs in the home this will only beget more spiders.

At Presidio Pest Management we are professionals that can help you keep spiders out of your home this fall, as well as  year-round. If you want to take every precaution you can from these creepy-crawlers, please give us a call.

Related Posts

Contact Us

Subscribe to the Bug Blog

Enter your email address to subscribe to our blog and receive notifications of new posts by email.

Join 1 other subscriber

Get a Free Inspection

Heather Howell
Heather Howell
19:16 04 Nov 19
Very responsive and professional! I appreciate the quality of work.
Colleen Wolfbauer
Colleen Wolfbauer
01:49 28 Sep 19
Bob came out very quickly to address the wasp issue we were having. He was professional, informative, gave us a great price, and best of all: GOT RID OF THOSE LITTLE BUGGERS!read more
Kelly Wallace
Kelly Wallace
03:16 24 Aug 19
We have a house that a family lived in for a few years. They planned on moving in July and during the course of a few months their grown son moved in prior to their move out. He brought in a mattress at some point that apparently had bed bugs. They moved out in July as planned and we called Presidio before we started a renovation which was at the end of July. We waited for a re-inspection before gutting and remodeling the house. “All good” found a bug 1-2 weeks later right in the process of new floors, carpet, paint, etc. so they came back and did some sort of other treatment. A few days later came back for another re-inspection “all good” today we found another. So here’s the thing; we paid $1,400 for a heat treatment that is supposed to be a guarantee. Why is it that we are still finding bugs after a $1,400 heat treatment and 3 additional visits? Mind you the treatment was at the end of July, it’s now the end of August. This should not still be an issue. I have never written a negative review but I am hoping to help someone else that may consider using this company and would suggest a different company that will actually back their claim because this is no joke and I’m literally disgusted. And if a heat treatment didn’t work I can only imagine what their other forms of treatments are like.read more
Plymouth Crossfit Lower Town
Plymouth Crossfit Lower Town
14:21 22 Aug 19
Presidio did an amazing job for us! Extremely knowledgeable, friendly, punctual, & professional. We couldn't be happier with the service!read more
renee frangedakis
renee frangedakis
19:15 20 Aug 19
Absolutely the most professional company I have ever dealt with! From the first phone call I was at ease during a stressful and trying experience. Numerous companies tried to play on my emotions for their monetary gain. I was ill at ease with all of them. I tried one more phone call and it was to Presidio. Bobby the owner and I had an instant connection and I knew this company was the right fit. Matt came for the initial inspection and the day of the extermination, the owner Bobby was also at my door to introduce himself in person. I was impressed with his personalized service and his professionalism, along with Jay who was in charge of exterminating my home that day. They worked diligently from start to finish and when they left, everything was put back neatly in its place. They were thorough and also helped us out financially. If I could rate them 10 stars I would. Call this company first and foremost. Customer service is their number 1 priority. I can't thank you enough!!!!read more
Heidi Keesling
Heidi Keesling
23:06 16 Aug 19
My parents moved out along with the cats and the vacant house had so many fleas! The owner is amazing. This company is trustworthy with quality service.read more
Cheryl King
Cheryl King
21:27 23 Jul 19
We were very happy with Presidio Pest Management's handling of our hornet's nest. They came out the same day we called and returned a few days later when the issue wasn't completely resolved. They were very professional.read more
Carol Compagnoni
Carol Compagnoni
11:38 21 Jul 19
I have used Presidio for my home and rental property for many years. Excellent service completed by the technicians; timely and friendly. Highly recommend Presidio Pest Control.read more
Maria Gilezan
Maria Gilezan
14:17 24 Jun 19
Scott, and Bob are so GREAT, efficient, EXCELLENT JOB, THEY ARE THERE IN HOURS, AFTER FIST CALL. I'M VERY SATISFIED ..5 STARS ALL THE WAY . THERE GREAT, CALL THEM PLEASE. THANK YOU SO MUCH..read more
Renee A
Renee A
16:14 14 Jun 19
I am honestly so impressed with this company. I really can’t say that for many places anymore. I called the company with a matter that I was panicked about and they were able to assist me very quickly the same day. Scott came to the rescue and his service was amazing. He was a great guy who answered all my questions and did such a thorough job. I will be recommending this company to all my friends and family. Def will be scheduling my annual house sprays with them. Thank you!!!read more
Tamara Kramer
Tamara Kramer
15:12 08 Jun 19
Scott was very friendly and knowledgeable. Took care of business. A super nice guy. We'll see how the treatment for ants works.read more
Amy Keogh
Amy Keogh
22:12 23 May 19
The owner and all of the employees who visited our home were very professional, courteous, and fast! High praises for the hard work they do. Thanks!read more
Mel Hawl
Mel Hawl
22:54 26 Apr 19
Fast service, fair pricing, great communication. Our service was done by Jay. He was great, explained the process clearly and answered all our questions. He was polite and funny. He was good with the kids, made us feel very comfortable and didnt make us feel ashamed at all. I am extremely satisfied with this service.read more
Allie Dennis
Allie Dennis
15:39 23 Apr 19
Great service! Kind, professional, and trustworthy. We got our house sprayed for spiders and ants in the Fall and plan to use them again as Spring rolls around!read more
Larry Binion
Larry Binion
18:43 15 Apr 19
Bobby is Impeccably Excellent! Matt is the Man also! What would I do without Presidio. They are so good they should make a video! With these Guys I would have no hope! To be honest their service is DOPE!. In pest control they are best! Hire them and put your worries to rest! Excellent eradication and great service. Presidio makes sure that I never worry or get nervous. Matt's visit was so good that there came a twist. There was a critter caught in a sticky trap that I thought in my place didn't exist. Well, they are the best at what they do! I am not bragging, it is 100% TRUE!read more
Larry Binion
Larry Binion
18:43 15 Apr 19
Bobby is Impeccably Excellent! Matt is the Man also! What would I do without Presidio. They are so good they should make a video! With these Guys I would have no hope! To be honest their service is DOPE!. In pest control they are best! Hire them and put your worries to rest!read more
N A
N A
13:41 25 Mar 19
Presidio is scheduled to provide service at our home. Thus far Bob has made himself readily available to answer our questions and address our concerns, even after business hours. We genuinely appreciate that. I feel confident that we've chosen a company that will get it right. Looking forward to their visit to our home.read more
Julie Widiker
Julie Widiker
19:39 01 Feb 19
This company is thorough with the complete process. Start to finish. The owner and the employees are incredible! Compassionate, understanding and very knowledgeable. Any questions I have had are answered promptly and efficiently. Our exterminator professional Matt has been courteous, prompt as well as knowledgeable. I highly recommend Presidio!read more
Sara DeNardo
Sara DeNardo
20:17 14 Jan 19
I cannot express how great it is to work with Presidio. They are reliable. thorough and fast to respond to any and all appointment requests. In the mortgage industry you find yourself against many deadlines, and we have yet to worry about an order we have with Presidio. In fact, they over exceed any expectations I have on what a reasonable turn around time is. I would recommend them over any Pest Management company in the tri-county area! You will not be disappointed.read more
Laura Gush
Laura Gush
10:44 09 Jan 19
Pest control for bedbugs for apartment complex. Have been dealing with bedbugs for about 7/8 months now. Initially heat and chemically "treated" did a few follow up appts and never showed up for the last couple that they said they would. Fewer bedbugs and the duration that they'd be seen after went from upwards of 10 every day down to 1 or 2 bedbugs every 2 weeks to a month (just thought maybe they were single straddlers". Anyway, bedbugs started coming more frequently again and in increasing numbers again, so apt management was notified and Pest control guy came, had an attitude (not to mention, this particular employee seemed always to have an attitude any time he did actually come to do his job) about "why" he was just now hearing about them again after 6 months. And I told him, well, they weren't coming so frequently anymore until now, plus you never showed up for the last couple "follow ups" he looked around and asked "where are you seeing them?" I said, what does that matter, we are seeing them and they need to be treated. Well, he didn't treat anything that day and was "supposed to" come back a couple days later and never showed. So now I have to continuously go to apartment management who are only here 3 days per week for a total of 12 hours (4 hrs each day). Another week passes and apartment management said that "Pest control had come" I said, no they absolutely did not. If they did, they didn't come to my apartment. They also claim the initial heat/chemical treatment doesn't kill the bedbug eggs. That doesn't seem right either. I bet if they had to live with bedbugs they'd treat theirs real quick.... Update: they came and were completely professional. Fabulous the last times to treat the bed bugs. Just a shame it couldn't have been treated the first time. Thank you!read more
Anthony Grochowski
Anthony Grochowski
00:37 04 Nov 18
We have been using Presidio for a few years now. From one house to another, 20 miles apart. We switched from using a big brand-name company and couldn't be happier with the results. They are professional, personable and thorough! They speak to us in layman's terms and help us to understand what it is they're doing to help. They give options and let us know exactly what we are getting, no surprises. We have three children and animals and are completely comfortable with the products they use. They've proven to be effective, time after time.read more
Next Reviews