this post was submitted on 28 Aug 2025
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I think I 'm witnessing the beginning of a wasp nest in the wall of my living room? (slrpnk.net)
submitted 2 weeks ago by solo@slrpnk.net to c/diy@slrpnk.net
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Today I noticed a wasp coming and going in my living room. More precisely, it goes into the wall just next to the light. There is not too much room there and I don't really have visibility, so I can't tell what this wasp-like insect is doing there. Also, even tho I think it's one, maybe it's one at a time? Not sure.

I did check some videos on the topic and maybe this could be the beginning of nest? Since, I wouldn't want something like that in my home, I am looking for ideas on how to deal with this. It seems like a tricky spot to me due to the electric wires connections, in the sense that spraying something there could be dangerous.

Anyways, if you have experience and/or ideas on what to do, please help!

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[–] slurp@programming.dev 21 points 2 weeks ago (1 children)

Not a full solution, but painters tape to seal the gaps might stop further nest building

[–] solo@slrpnk.net 7 points 2 weeks ago (1 children)

Thank you so much. Doing this immediately!

[–] I_Fart_Glitter@lemmy.world 6 points 2 weeks ago (1 children)

Do you have access to the space above the ceiling? It’s pretty likely there is already a good sized nest in there and the light fixture is just an access hole that one wandered out of and is now trying to get back in. These kind of wasps will eat the wood up there like termites.

[–] Yaky@slrpnk.net 10 points 2 weeks ago (2 children)

That looks more like a mud dauber, which are solitary and do not eat wood.

(Then again, I am only familiar with some NE US insects, and poster is probably not in the US)

[–] I_Fart_Glitter@lemmy.world 3 points 2 weeks ago

The legs do look a bit longer than the ones currently eating my house, but still worth a peek.

[–] MicrowavedTea 3 points 2 weeks ago

It does look like a mud dauber and, for what it's worth, they don't attack humans like wasps (at least where I am). If it's not doing any damage you could possibly even let it be and they'll be gone after the summer.

[–] YaksDC@sh.itjust.works 14 points 2 weeks ago

Turn off the breaker that feeds that light. If you don't see any activity, get up on a ladder and listen. If you don't hear insect noise knock on the ceiling near the light and listen again. If clear, look for a screw that is holding up the conical shaped cover, that should be a decorative piece that can be slid down the pole. You should then be able to see what you are dealing with.

You can use wasp spray up into the gangbox if you want. The suggestion to use painters tape to cover hole under the decorative cover is a good one. Just be sure that you allow the wasp spray to completely dry before turning on the breaker again.

I have approached this kind of situation similarly.

Good luck!

[–] pizza_the_hutt@sh.itjust.works 11 points 2 weeks ago (1 children)

Burn down the house and rebuild. It's the only way to be sure.

[–] fan0m@lemmy.world 3 points 2 weeks ago

This is the way

[–] NigelFrobisher@aussie.zone 3 points 2 weeks ago

Try buying them off with sugar water.

[–] Semi_Hemi_Demigod@lemmy.world 2 points 2 weeks ago

Get some diatomaceous earth and squirt it into the hole. It’s a non-chemical insecticide that will kill them and keep them from coming back.

[–] swelter_spark@reddthat.com 2 points 2 weeks ago

When it starts getting cool out, sometimes one will come inside and find a warm place to hole up for the winter.

[–] Nomad 2 points 2 weeks ago

Wait for it to be inside in the evening. Seal with tape for a week. Problem solved.

[–] blimthepixie@lemmy.dbzer0.com -1 points 2 weeks ago (1 children)

Catch it in a jar and release it outside?

[–] solo@slrpnk.net 7 points 2 weeks ago (1 children)

Maybe I should have specified that where I live it's summer now, so windows are always open and will be so for many more weeks. Meaning, releasing it outside would not prevent it from coming back in.

[–] CubitOom 11 points 2 weeks ago* (last edited 2 weeks ago)

Buy screens for your windows.

Maybe use mosquito netting with that painter tape you got as a temporary solution?