Why fogging fails

Today I had an account that tried the often futile fogging approach to german roach control. A total of six ‘bombs’ were used in this small 2 bedroom apartment but you’d never know it by the hundreds of happy insects running around.

In normal circumstances I rarely fog but the place was empty and german roaches were everywhere and I couldn’t spray the ceiling and walls without making a mess and going against the product label. Most pest control companies have fog machines which are far superior to any 6 ounce can you can buy and the difference in results spoke for themselves almost immediately.

The problem with canned foggers

Fogger cans that you buy from big box stores have all the right ingredients but the propellant in the cans just shoot the insecticide up in the air and does not direct the spray. Roaches are very sensitive to chemicals and sensing danger they simply tuck away in a crack or crevice long before they get a lethal dose. Once the danger has past they reemerge and go about their business.

Professional foggers

fog machine vs. can pestcemetery.comElectric powered fog machines can billow out enough material to fill a room in a short time and by simply pointing the mist towards a closet or cabinet it is quickly filled with the fog and contacts many more bugs. Some machines allow for the tech to use a wand and trigger application that can treat small cracks and voids such as refrigerator motors. Just the simple difference of controlling the direction makes a huge improvement in fogging.

Don’t rely on fogging alone

Whether fogging for roaches or fleas you should always apply a direct treatment first using liquids, dusts and aerosol materials. I wouldn’t bait at all if you’re going to fog. The fresh bait will just be contaminated by the mist and not be eaten by the insects. Fogging has its place but even if you have these machines most fog material have no residual by design since it will come in contact with so many surfaces. You’ll need a barrier that lasts after the fog dissipates and that’ll come from your manual treatment. In a week or so a good strategy would be to bait with gels or small bait stations.

While many times a fogging will produce seemingly dramatic results because many roaches that couldn’t hide quick enough do die. Don’t be
fooled. It is only a short time later that they resume normal activity and their ability to reproduce will get the population climbing again in short order.

About The Bug Doctor

Jerry Schappert is a certified pest control operator and Associate Certified Entomologist with over two and a half decades of experience from birds to termites and everything in between. He started as a route technician and worked his way up to commercial/national accounts representative. Always learning in his craft he is familiar with rural pest services and big city control techniques. Jerry has owned and operated a successful pest control company since 1993 in Ocala,Florida. While his knowledge and practical application has benefitted his community Jerry wanted to impart his wisdom on a broader scale to help many more. Pestcemetery.com was born from that idea in 2007 and has been well received. It is the goal of this site to inform you with his keen insights and safely guide you through your pest control treatment needs.

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  • OMG, iam freaking here with your died cockroaches.. :

  • It wasn’t fun for me either and I was in the middle of it! lol

    Thanks for reading
    The Bug Doctor

  • Thomasvaughn24

    Me and my Some of my buds just moved into a house. We noticed that one of the leather couches ( more like theatre chairs ) was roach infested. We tossed it in the garage and are debating on what to do with it. My uncle said bomb the crap out of the garage with the couch and anything else that might be roach infested but would that get all of them out? I wouldnt want to do that thinking its okay and bring the couch inside and a few months later have a roach problem!Any advice would be greatly appreciated!

    P.s if you have any ideas on how to check for roaches in a mattress let me know please!

  • In your case you could fog the garage and that might catch some ‘runners.’ BUT I’d follow up with 2 things. #1 A vacuum with the attachment and pyshically remove all I could and then #2 on the under side and in the cushions- put a bunch of the Max Force (little round plastic bait stations) in where you can. — For your mattress & any other item and checking for roaches. It’s always best to follow the fecal matter. http://www.youtube.com/watch?v=t_QIwQd0hxo Works every time!
    Good luck

  • I bought some raid fumigator for my garage. I have all sizes of Oriental Cockroaches! They are in my house (not bad at all) but I can’t have our pest control people spray cuz of my infant, only the bait for now. However, my garage is detached, and I thought a fogger or fumigator would do the trick. They are pretty bad out there, and it scares me cuz we have a nice pool table, a new motorcyle and new car! Should I use the fumigator for the heck of it? Maybe even use a fogger in addition? It’s a small double car garage with a loft. I don’t think the housing’s pest control company will spray period because of our baby being under 1yrs of age. I don’t want to fog the car, but maybe the motorcycle because it has been sitting for 6months since my husband’s deployement. I have switched all cardboard boxes to plastic storage tubs. Suggestions PLEASE to get rid of these lil sh** heads! Thanks!

  • I looked up the fumigator and it seems the same as a fogger–but honestly, neither one will do the job since the roaches will just find hiding spots until the fog dissipates. I’d use Niban baits, inside and out–works great. Check out my video on it http://www.youtube.com/watch?v=nkyNA5DHJWk&list=UU-HKYF6dBpynkcn9ijki9Ig&index=3

    You can buy this at your local DIY pest store if you have one or on line.

  • Ash

    I fogged my house and detached storage building earlier this week for roaches. We have been putting down Boric acid and bait traps but they still seemed to get worse. The fogger’s don’t seemed to have had any effect. Any ideas on what else can be done?

  • First you need to know which type of roaches and then I think you can begin to nail down a real good plan. German roaches won’t normally be in storage bldgs.
    so–I’m inclined to think you may have American, Australian or Oriental type roaches…they are typically much bigger and thrive in places like that. Perhaps check out my roach topic area and see if you can spot what you have and then hopefully the article will steer you in the right direction.