how to get rid of wasp nest in cavity wall?

deano72_2

they have made a nest in my wall in the porch & are probably loving the the insulation in there.i noticed it a month ago & was tempted to leave them as there doing no harm & felt bit guilty bout killing them.nowi there starting to be bit angry so time get rid.they have made an entrance in the lime morter & was tempted to to seal it up & hope they just die but i aspect theyd just eat another entrance.
i looked at smoking them out but can only see smoke pellets available which wont fit thro the hole,so any recomendations? spray any good?

Farway

They will die as the weather gets colder, just put up with the dying, hungry & angry wasps for another month and all your troubles are over for this year

Then seal up the hole to prevent entrance next year

Or if desperate and cannot wait for nature to resume, call local council or some other pest control, they will charge you of course

Me, I would just wait

Bonbon

I saw loads of wasps constantly going into my roof under a tile. I just bought wasp killer powder and puffed tons of the stuff under the tile and all around it.They weren't happy so you'd need a bit of protection from stings, but I haven't seen a wasp since so it must have worked.

sirbrainy

Noticed what must be a huge (judging by the frequent comings & goings) wasp nest in one of our compost heaps over the summer, over at our place in the sun.

Was sorely tempted to spray into the entrance with petrol, light it up for a few minutes to kill them then hose it all down with water to douse the fire and save the compost.

Decided against that. Will turn the compost heap at Xmas and that should be the end of them.

But my young son got my T shirt, soaked it in water then stuffed it into the entrance, probably thinking he could stopper them in

I noticed and made him run like hell and left them to calm down.

Next day I retrieved my T-shirt with a rake - but it was full of huge holes. The wasps had eaten great big chunks out from it.

T-shirt ruined as I'm not into the punk look

deano72_2

dont they hibernate in winter? i dont think the cold will get them in there nice cozy insulated nest

sirbrainy

Spray some petrol in & light it?

Lagopus

I'd be wary of pouring petrol into a cavity wall! Get some Nippon Wasp Nest Destroyer c.£3 from Aldi - its a foam spray, it squirts out 3m so you can stand well back. Do it after dark when they are all at home - job done.

I did a nest under our eaves with no problems - theres loads left in the can.

Queen_Latifah

Had a nest of wasp inside my black compost bin last year. I covered the small entrance and didn't touch it until this spring. Result: all the wasps have disappeared.
This summer, it seems they have moved into the loft (lots of dead wasps falling off when I open the loft door). Somehow, they managed to get into the house as I have found many dead around the study's window (counted 32 one day and 24 the next!!). There were a couple of holes in the ceiling left following the rewiring of the house- I duly filled them in with polyfilla and definitely seem to be having less problems now.

Mrs_Chip

Wasps die off in the cold, I think its only the queens that survive and they fly off to start another nest somewhere else. Wasps are very good for the garden, they eat lots of pests and are pollinators, so if you can put up with them it is better to just let them do their own thing.

If the nest is in a place where you might disturb it (a friend of mine had a huge one under her bath!), it is better to get it dealt with by someone who knows what they are doing, as they can become very feisty when riled!

valk_scot

The queen starts a new nest every year and the old one gets abandoned so if you can live with yours a bit longer, the problem will resolve itself.

Otherwise use the spray stuff, after dark when the wasps are not active. Then seal up the hole and any others before next spring.

cheerfulness4

We had one in the wall cavity a couple of years back. Waited till evening when they're less active (as said above) and just puffed the cavity entrance with ant powder. Nippon. Dead by morning. Every one of them.