Yellow Jacket Nest
Grace M; Waterloo, Ontario asks: I have a yellow jacket nest above a soffit in the corner by a door that we use to get from the house to the pool. I have sprayed foam insecticide in the areas four times, but the next morning they are right back again. How can I get rid of these pests without removing the aluminum soffit?
Dear Grace: The most effective way to kill off a yellow jacket nest is by using pesticide dusts. You pump the dust into the entry hole of the nest with a powder duster such as those sold under the Centro Company bulb dusters name. For extra safety you can buy a Gotcha Sprayer Pro extension pole that holds the powder duster and keeps you fifteen feet from the wasp nest. You can purchase pesticide dusts at most lawn and garden stores, but the Gotcha
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The pesticide dust coats the wasps as they leave and enter their hive and kills them in short order. But, be very careful, as yellow jackets are very aggressive. They are not very social and often sting even when you haven't threatened them. Do the work in the dark using a flashlight and wear protective clothing. Or, call a pest control professional to do the work.
The longest surviving member of the colony is the queen, but she will die in the nest in the fall. All the adult reproductive wasps will leave the nest to mate. The remaining worker wasps will slowly die out as the weather turns cooler. The nest is never re-used by the wasps. So, once all wasp activity ceases the only task you are faced with is removing the nest from the soffit so it does not attract other insects that feed on dead insects.
Comments
20 Jul 2008, 20:19
Cheryl
21 Jul 2008, 09:00
If the situation presents too much risk I would suggest paying a professional to resolve the issue.
24 Aug 2008, 13:39
24 Aug 2008, 16:33
Be sure the nest is inactive before you try the removal, otherwise, you'll find yourself in a situation that you will wish you hadn't.
01 Sep 2008, 01:37
01 Sep 2008, 21:24
Your pet would have to be covered in the pesticide dust to have any negative effects. If you are concerned about the pesticide residue simply hose off any that you see on the grass.
22 Sep 2008, 16:29
23 Sep 2008, 09:31
To kill the existing yellow jackets in the wall you will need to treat the entry holes with an insecticide dust formulation. The dust coats the entryway and gets on the wasps as they come and go. Do not seal the hole until all wasp activity ceases.
You will probably end up hiring a drywall person to open the wall and remove the dead nest once the wasp activity has stopped.
07 Oct 2008, 20:10
08 Oct 2008, 08:56
Like my article says, dust the exterior holes where you have seen activity. That will kill them. The onset of cold weather will also kill them.
10 Oct 2008, 03:20
and i set off 2 bug bombs in there and i find a bunch dead but then the next day i'll go in there and their will be live ones i cant find exactly where the nest is or where the entry points are and i have no money for an exterminator or pest control what do i do?
10 Oct 2008, 10:11
Drill a 3/16" hole in the wall and, using a billows duster, available at most hardware stores, pump in pesticide dust, also available at hardware stores.
Reseal the hole and wait until the wasp activity has ceased. You will no longer hear any noise. Once you are sure that has happened you will need to cut open the wall to remove the dead nest. If you don't remove the nest you will attract other insects that will feed on the dead wasps and eventually enter your house to feed on woolens and fur clothing.
17 Oct 2008, 19:45
After finding a few in the house I tracked down where they were coming in. I went in to my crawl space only to find they have built their nest in the insulation in the crawl space against the floor held up with thin wires between the floor joists. With there only being a 36" area to move around I don't want to pull the wires to drop the insulation only to set them all into attack mode.
I bought a HotShot brand fogger. I crawled down and set it off under the nest area. Left for 2 hours and upon return to air out the crawl space a lot are dead but some are still alive. I removed the 1st fogger and set off a 2nd. Upon returning I figured that was enough for one day and opened all the air inlets to the crawl space and all the windows in the house to let it air out.
Not crawling under the house yet, but watching their entrance path to the crawl space air inlet. They are still coming and going. Reduced numbers but still enough to count.
Any suggestions? My next thought is I will have to remove the insulation and possibly bag it while in the crawl space to remove it. Unfortunately the only access to the crawl space is through the master bedroom closet.
17 Oct 2008, 23:50
During the fall yellow jackets days are numbered. First couple of frosts will do them in. I suggest waiting until all wasp activity stops. Then, you can remove the entire nest without getting a single sting.
24 Oct 2008, 12:41
Before calling an exterminator, I used RAID Wasp killer to spray in the hole. Finally called an exterminator and he dusted however commented that the RAID may have pushed them in further. Is this true?
My main question is this: I currently have the heat off in those rooms. If I turn on the heat, will it keep the yellow jackets active/alive or will they still die due to the outside temperature?
Also, many of the yellow jackets I am seeing inside are on the floor moving slowly - is this the dust taking effect or the cooler outside temperature effecting them?
Thanks!
24 Oct 2008, 15:11
The insects you are discovering may have been affected by either pesticides, or they are just dying naturally. Difficult to say which.
24 Oct 2008, 17:52
It is October 24th in North-East Pa, I recently discovered that I have a yellow jacket wasp problem. They are entering my house in a crack in my siding 3rd floor up. I sprayed as best as I could. They are in my bathroom walls, so I used a stethoscope, drilled hole and let loose with foam. I am getting them in my kitchen, and basement which are both underneath my bathroom. I already bought and used a fogger in my basement and bathroom and will be bombing again tonight. my question is, with colder weather coming will the rest of the nest die, and what will I have to worry about come spring. I have poor insulation in my bathroom and it will be next to impossible to get at the nest without major complications. what esle could i do?
24 Oct 2008, 23:14
The nest will die soon and you have no choice, but to open the wall and remove the nest. If you don't remove the nest you will get other types of insect infestations. Insects that eat wool, linen, fur and leather. You must remove the nest.
27 Oct 2008, 22:17
10 Nov 2008, 15:40

