Mark accidentally avoided the most simple advice that everyone hears but pays no attention to, he did in fact let the bed bugs bite.

My mom has been at war with bed bugs for almost 2 years now, spent over 8000 on exterminators all failing to do their job, not one of them even suggested steam or how to properly use diatomaceous earth, she can't afford exterminators anymore and has resorted to harsh chemicals which seem to have handled the bulk of them, but with what I've learned here I can hopefully help her to finish them off and prevent future problems, thank you.

Its funny how these little demons are basically land mosquitos, but the mental toll they take is devastating.

I had bedbugs a few years back. We got them from a hotel. We should have known something was up when we had to leave in the middle of the night because my son was having an incontrollable asthma attack. We found the little blood suckers in his room about 3 months later. It was bad. Not much was on the market to treat them, so I did some testing myself. Nothing this scientific, but with clear results. I captured 10 bedbugs at a time, put them in a plastic container and added the treatment as desired. Diatomaceous earth does work well, but so does boric acid or borax, but at a fraction of the cost. Sprinkle the carpet and baseboards with either of the 3, and the effect is the same. The cheap powdered laundry detergent works well too, but not as well. Boric acid had the best success. I did find a combination of pesticides does work with a residual effect. It's Cyonara 9.7 (Lambda-cyhalothrin 9.7%), Bifenthrin, and Permethrin. These work slightly different from each other, so a generational immunity is unlikely, and are each safe for indoor use. The Cyonara has a pleasant cherry blossom smell. Just steam, spray, them put down powder. Those little blood suckers were gone in a few weeks. Given their long food intake intervals, we still see one on occasion, but they are typically already dieing.

Prof. Wong is the kind of academic I love. Huge nerd, loves his subject, happy to share, has a lab of horrors in the basement.

Dude, this is not edutainment anymore, this is actual public service. Well done.

In the same house for 25 yrs. NEVER had any time of bug infestation until: We bought a bed in a box (mattress) in December and now are on our second huge bitefest. I just used the Diatamaceious yesterday and Im hoping for great results. The fogger seemed to work for a month or so and this video mentioned that the fogger simply makes the bugs immune to them. Best of luck getting the bugs gone to everyone !

We had them in our bedroom. Tried the bombs and other things like spraying them with rubbing alcohol. 90% worked the best. I even put vasoline all over the bed frame to catch them. I caught quite a few. Ended up throwing the matress and box springs out. That was about 2 years ago and I have not seen one since. Keeping my fingers crossed.

The bites aren't the worst part it's the psychological damage.

I've never experienced bed bugs, but this has inspired me to burn my house down just to be safe.

We should be finding ways to get rid of them permanently bc we don’t need them.

I once went to stay with a friend for a few nights and was waking up with all these strange bites which I'd seen videos about in the past, so knew they were bedbugs. She however did not have any bites but called her building's pest control anyways. They came and inspected and found huge nests underneath the mattresses. Not everyone shows a reaction. She was laying asleep at night getting fed on all night and had no idea!

This dude has built credibility like no one I've ever seen. He just said "ignore all the advice you've ever heard about bedbugs" and I just thought "okay" with no hesitation

Years I ago I noticed bed bugs. This is how I eradicated them. 1) I sealed my mattress with a bag, as suggested here. 2) I cleaned all my clothes, sheets etc. 3) I bought four small bowls and put diatomaceous earth in all of them. I then placed each leg of my bed into one bowl. That way when the bugs wanted to climb up to me, they would climb up the bowl and fall into the diatomaceous earth. Every morning I found bugs in the bowls. Within a week they were all dead.

Thank you Mark! This video changed my life entirely! Your recomendations helped me to get rid of bed bugs in my dorm room completely! Thank you sooo much!

Great video Mark well done. I knew all of this some 5 years ago. 100%. spot on. Pest control companies work their business on control and not massive elimination.

I love the contrast between Marks panic and the professors immense chill

I love the professors willingness to support Mark’s utter insanity😂

Great information. Very informative. Thank you 🙏

I work in pestcontrol, my company sprays strong insecticide with residual on people’s mattresses, couches and any furniture in the house (not where people have contact with the fabric ). We also do a crack and crevasse treatmeant. Usually takes a few services to get rid of them.

As a former Pest Control technician, I endorse this message. I also want to stress the importance for those living in apartments buildings to let management know about the bedbugs. Small problems can get out of hand fast and it is very common for the person that reported the problem to be near someone with a much bigger infestation.

PROTIP for if you need to draw bed bugs out and get them to go to a specific place, such as a spot with lots of diatomaceous earth: dry ice! worked like a charm when i had to fight an infestation once. the dry ice gives off carbon dioxide as it evaporates which makes them think food is breathing nearby. stick a chunk in a plastic bowl, surround with DE, and leave it overnight. within a week of doing this every day, my problem was solved. i couldn't draw them out with my own body because i'm allergic to these suckers so the dry ice was a godsend.

As someone with carpet throughout the house, a material divan bed with drawers full of clothes underneath and nowhere to put a dryer, this video hasn't really helped my absolute terror at one day ending up with these!

Hey Mark! Just wanted to express my thanks for all the useful information and also pose a question of my own! People like me who have been through infestations frequently suffer from paranoia surrounding them, and are hyper-vigilant when it comes to looking for the first signs of an infestation, but those of us with little to no reaction to bites don't catch the most important one. I'm wondering if there's a product out there that would behave like the bedbug bait used in your tests here, something we can leave out and use at as a relatively conclusive litmus test of bedbug presence? I think I speak for more than myself when I say we'd all sleep a lot sounder seeing the bait empty!

Another tip for prevention: when you arrive at a hotel room - not only inspect the mattress but also anything near the bed like behind the headboard and the nightstands - PRO TIP: use a hot hairdryer in those hard to see areas to see if any bedbugs are there - they’ll move to avoid the hot heat and you’d hopefully see them.

Having been a pest control technician for many years, this video was so awesome. Thank you Mark for showing the science! We need a pest control series from you.

Currently dealing with bed bugs. Had them once before nearly 20 years ago. After months of psychological horror the thing that worked was diatomaceous earth. Very reassuring to have it confirmed here

This video is so useful! Thank you so much!

Bad idea watching this at 2am while in bed. Now I feel things crawling on me!😭

Mark has the unique ability to even make a super gross topic not only playfully entertaining but sparking curiosity in any living human being. The world needs definitely more Mark Robers.

Thanks for your video, it was clear simple and very helpful

I'm supposed to go on a trip in April and I've heard rumors bed begs are on the rise there.... I'd just as soon not go, but it's a family obligation. This will help give me some peace of mind for self-defense...

I had them 4 years ago living in NYC, it’s a mentally draining ordeal as well as psychological. I was afraid of sleeping in my own apartment. Worst experience ever, luckily my building solved the problem pretty quickly. I don’t wish this on anyone! Great video Mark, very interesting!

My family and I suffered with bed bugs for a year and a half. We tried everything. Sprays, foggers, essential oils, freezing our clothes and blankets, everything. They all failed. I spent $12 on a bag of diatomaceous earth, and dusted it all over the walls, floor, the carpet in my closet, on the bed and frame and bought mattress covers. Their reign of terror was over within 2 weeks. Hundreds of dollars, hours, and a couple exterminator consults wasted because no one told me about crushed up sea shells.

THANK YOU. Can't tell you how awesome this is. Needed the expert advice with no profit motive. You da best.

Brilliant, informative and educational. Ignorance just went dead after watching this video. Love this snd the knowledge is wealthy also

Dr. Wang is amazing. I've been in the pest control industry for almost 24yrs. This is one of the best informational videos on Bedbugs I've seen in a while. Awesome work Mark!!!

Impressively informative and helpful!

I'm glad that you became so popular and help so many people thank you

This is absolutely amazing to learn, having dealt with the occasional bedbug likely from neighboring apartment. Thank you Mark for subjecting yourself to science.

I run a bed bug business and this is actually extremely accurate on everything and really cool to see.

As a pest control technician myself, this is incredibly helpful! A lot of my customers have questions about the things they can do to get rid of bed bugs or avoid them, and- along with the professional help that my coworkers and I provide- this would be a great resource to direct them to. I especially found the test with the simulated bed post very interesting and it explains a lot of bed bug behavior I already knew about- specifically them climbing all over the walls in severely-infested rooms and apartment units. Great video! See if you can find other pest related content to make!

Amazing video!! Completely quelled my bedbug fears. I was wondering if you could do one on dust mites? I’m super allergic, have tried a lot of things, and it’s still ruining my sleep, wonder if experts have tested any products that help

Superb informative video. Thank you. ..... BUT I'M SO ITCHY NOW .....

Mark is becoming a detective, a doctor, and inventor, and an engineer. This might as well be the renaissance by itself

This was a really cool video. I'm an attorney and my office does a lot of bed bug law suits (suing landlords or hotels for knowing about bedbug infestations and still renting out the space leading to people getting bit) and I always wondered why when families get bitten up why do some of the family members end up having like 50 bites and others not as many, and figured it was just that the bugs happen to go for that person more, but seeing the talk about how reactive you are, I assume it's just that the other family members probably did get as many bites and just wasnt reactive.

I live in the UAE. Presently, we don't have bedbugs at our home, but I find shed watching the full video and I am feeling itchy all over my body - Though nothing is biting me 🤦🤷🤷

I live in a cold place and once we found a roach that was huge. Id say an inch and a half and had huge wings. It was dying because it obviously wasn’t from around here but I’ve always wondered where it came from. Must have been a shipping container...but it ended up in a residential area. It was something I will never forget.

I needed this like 8 months ago. We spent more than $1000 on chemicals including Diatomaceous Earth (DE). The battle lasted for about 3 months and we continually monitor for signs. The whole thing was very traumatic for us, and I'm really not being dramatic saying that, those who have been through a moderate infestation understand. To learn that all that cash we spent in the effort was not necessary, that the DE and steam was probably all we needed, is the biggest takeaway from this video. I applaud your scientific approach. I hope others in need find your video. Thank you

"so i can put more on my arm?" *genuine concern*

Thank you , most interesting video on this topic I have seen. It is quite straightforward and take out any fear about it.

As someone who grew up with the horror of bedbugs, I was scared to watch this video. But I'm glad I did, awesome video Mark

The amount of times Mark gets trolled by Professor is hilarious.

I saw you had a bottle of Aprehend (a spore based treatment) in the line up of the treatments you tested. I would like to know how that stood up to the rest of them?

I have to say I'm proud of myself for making it to the end. The reason: having beds bugs also messes with you. Remember that guy that just "learned to live with them"? It wounds weird, but having them, and having them defeat you repeatedly really takes a toll on a person's mind. That was years ago, but I could still feel them crawling on me when Mark put them on his arm. Thank you Mark for making something so potentially traumatizing a positive learning experience.

I've dealt with these critters a few times. My kids brought them home from sleepovers most likely. Mattress covers, bed leg protectors and diatomaceous earth are pretty solid. I tried the sprays and I had respiratory distress from the chemicals. If you're vigilant with it, you can overcome them. Vacuuming daily and decluttering are proactive ways to help speed up the process for sure.

Appreciate your work

I watched this one month before a trip and this help a lot and thankfully we had no bed bugs

Mark really is like that one chill uncle with crazy innovative ideas who cheers you up & gives you gifts whenever you see him

Because of this video I dreamed about bugs all night last night. Bugs in my bed (but not bedbugs), bugs at my job, bugs everywhere. Thanks Mark.

I LOVE YOU, THANK YOU SO MUCH FOR HAVING MAKE A VIDEO ABOUT THESE GRRRRRRRRRRRRRRR THINGS

Make a video covering how to effectively get rid of fleas from pets (especially from cats and dogs). I have heard many people talk about Diatomaceous earth but I have found conflicting information about it on the web.

My jaw literally dropped when they showed the house with the really bad infestation. It blows my mind that any human could live in that sort of environment.

I love how the entire time the professor is just basically trolling mark 😂

Very informative.. Thanks ! 🤓✌🏼

I had a moderate infestation. Panic every night knowing I was going to get bit. Exterminator wanted $2k to spray, then I found a product called cimexa. It's like diatomaceous earth but more concentrated crushed silica. It was super effective and no sign of them after a month and almost a year and a half later and they've stayed gone.

Lol at Mark not realizing that he would definitely have bed bugs on him. That’s how you can tell a person has never dealt with them in their home. The whole time watching this I was stressing that he was gonna cause an infestation in his own home.

My father once told me that during his military service, he was assigned to a garrison where he encountered a room infested with bed bugs. Determined to find a solution, the next day he headed to the kitchen and grabbed four large empty canned food containers. Filling them with water, he placed each bed leg into a can. To his dismay, he discovered the following days that the bugs had changed their strategy. Instead of climbing up the bed legs, they had found a way to reach the ceiling and then strategically dropped onto the bed! Truly amazing.

He’s literally the new Mr beast 😂

i loved the professors little giggles when mark freaks out lol

As someone who’s worked in pest control for 5+ years this is totally true! Great information and lines up with all my trainings as a pest control professional! Thanks for making this Mark!!

Honestly this video is a public utility. I'm sure it will by itself help reduce the bed bug population in cities. I know a lot of people that just assumed that it was not possible to get rid of bed bugs without paying thousands of dollars. If this information is known by the wider public we are entering a new era in the fight against bed bugs. So thank you to you and to professor Wang.

You are so funny. You made me laugh out loud so many times during the video. Thank you. I do not have a problem with bedbugs, but I have a friend that does. Thank you for making my day.

all of those prevention tips for not getting bed bugs are something i practiced from my two week road trip but i was certain that when i got home i had some. luckily, thanks to this video, i am fairly certain i dont. if i do, im still doing the preventions anyway

I once found one single bed bug on my bed. I thoroughly searched my room and found nothing and I’ve never see any since, but that single bug made me sleep terrible for like a week.

Pest control tech of 15 years here, absolutely outstanding video! I use to use DE when I first got into bed bug treatments I’ve moved on to silica dust now along with a handful of other insecticides I also take apart the beds and furniture during my treatments. It’s refreshing to see someone talk facts about bed bugs and not try to say dryer sheets and sonic sound will help. Thank you!

Merci beaucoup pour cette information.

You’re amazing and you saved us from the nightmare of bed bugs!

Great Video, Mark. I studied bed bugs after dealing with this for 2 years. I used a method not mentioned in this video. I placed a doggie dish upside down with talcum powder in the grooves to trap them. I taped cloth around the perimeter of the upside-down doggy dish to give them something to climb up. To lure them to the dish, I placed a thermos with dry ice inside on top of the dish, closed the thermos and opened the nozzle. This released CO2 (which as mentioned in the video is something the bed bugs are attracted to). I kept the trap a couple feet from the bed. I would replace the dry ice daily and stayed away from my home for a couple weeks. This literally trapped all the bed bugs. It takes a bit of effort and is inconvenient, but I have never had bed bugs again. Also the video mentioned that 50% of people are not affected, but the reality is, it can be very depressing and embarrassing to live with them. You also do not want people to visit you and then transfer them to their respective homes. You can look up this solution in more detail by googling "dry ice bed bug trap". I hope this helps someone and take care.

Worked in public housing ~6 years ago and bedbugs were a constant problem. Exterminator told me that the chemical they used to use worked great, but was extremely carcinogenic so they had to switch to weaker stuff which the bugs are basically immune to now. Eventually we switched to the heat treatments and those seemed to work well, especially considering that the traditional treatments involved a lot of cleaning which most of the tenants hardly ever did. Funniest part was we had this one lady who was basically a stereotypical crazy hippy who swore by diatomaceous earth. We all basically laughed it off but turns out she was the true galaxy brain all along.

Wow 😮great information bro, thanks

this video gave me ptsd from the years i lived in the gutter.. bed bugs were a real problem back then, an infestation isnt something id wish on my worst enemy

I’m a social worker who has to go into infested homes sometimes. These situations have always been scary for us because we don’t know how to protect ourselves and can’t really afford to hire help if we bring them home. I’m so glad to have this information to share with my colleagues and clients now.

This is arguably more of a PSA than a UKposts video but hopefully you powered your way through it ;) Now let's build some cool stuff together- www.crunchlabs.com

Wow , thank you !! Your brave.. thank professor Wong .

I think you should also test applying disinfectant phenyl (floor cleaner)

I had a terrible problem with an apartment I lived in 3 years ago having a massive bed bug infestation. The owners of the building knew about the issue and never properly treated it so the bugs would just go from unit to unit over apparently decades from what I eventually found online in reviews for the apartment. ALWAYS read up before you move into shared living situations. Save yourself the time and money. People always talk about bad tenants and not enough about predatory landlords.

Mark didn't just teach us about bed bugs, Mark also just taught up how mating works. Thank you Mark very cool.

Finally a helpful video on bedbugs. I will try this and let you know if it works!

Feel Itchy Now! Thanks!

It's kinda adorable that Mark didn't know that roaches can fly. I live in a warmer climate so I see them decently often. Diatenatious earth works well on other bugs too. I've used it for roaches before. Great stuff.

Well this makes me feel at least a little better traveling from hotel to hotel

I don't understand how someone can "learn to live with" bed bugs crawling on you in your sleep. Insanity

Gracias por sus concejos

Pro tip: when putting in a new floor, before the baseboard is put on, fill diatomaceous earth all around the edges of the room under where the baseboard will go, between the flooring and the wall (works with carpet as well - just fill the space between the carpet tack strip and the wall). This will take care of bedbugs, ants, sow bugs, etc.

I got bedbugs about a decade ago and it was the worst thing that ever happened to me in my whole life, bar nothing. In the end, most of the conclusions I came to were identical to the ones made in this video, so I'm glad I wasn't doing anything I really didn't need to do lol. I still treat every new room I move into with diatomaceous earth to this day, and I'm the neurotic bedbug checker whenever I go on vacation with my friends. I had serious PTSD-like symptoms from the experience for a while, but the fact that I was able to watch this whole video and only feel a little bit itchy is proof that I've come a long way lol

Yep I've dealt with these things in two of my apartments when i lived in Oklahoma

As someone that went through a moderate bed bug problem that lasted for quite some time, I am disappointed that this video wasn't made around the time I was trying to get rid of them, but at least I now got some better tips in case this happened again.

This video just proved to me that I will watch your videos in entirety every time they pop up on my feed, no matter the subject. I didn't think I would ever intentionally watch a video about bedbugs, unless I got them in my home. The way you approach whatever subject you're focusing on and deliver the information just hooks me every time!

If an experienced person asks you if you’d like to use gloves while doing something, the answer should pretty much always be yes.