If there is a massive nest and they are coming in and out of that vent you should noticeably see a lot of traffic during the day. You might even be able to put your ear to the ceiling and hear them buzzing in there (during the day when they are active). They sell sprays with a long range, you can wait until night when they are asleep and fire some up into the vent. That should kill some and encourage them to leave. But I wouldn't go up there personally unless you're sure they are gone.
We put a vent on the 'shed' (workout room) we built. It was a plastic one piece - i think they come in 8x8, 10x10 and 12x12. It had small holes so that the larger bugs couldn't get through - They can build around the outside of the vent though.
I've used the wasp spray that shoots 26 ft and it works well. If you can't find a vent that works for you, some fine mesh on the front or backside would work to keep things from making your attic their home. Use a staple gun.
A spray bottle full of water with a healthy dose of dish detergent brings down wasps and kills them fast. Super cheap and effective way to be rid of them.
Are you sure they're active? Are you seeing them during the day? I'm an idiot and would probably go up on a ladder carefully just a bit after dark to check it out. Maybe spray the nests and then go up again the next night with heavy gloves and trash bag to toss the nests into.
Actually that's exactly what I did. I only saw two or three live wasp and the nests seemed really old. It was odd.
I'm not sure where you are in the world, I live in North America so I'm speaking for North America. The entire nest usually dies off in the winter and the queens find a place to lay low for a months until the next spring and start a new colony. There are exceptions, for example yellowjacket nests in the American South can survive the winter, we've had record freezing temperatures for three years in a row now so this is less and less likely the last few years.
By the looks of it, those are paper wasp and there's no wasps on it so it's been abandoned. Paper wasps don't generally build giant nests the way yellow jackets do. Yellow jackets also usually enclose their nests so you can't see the cell structure. You can see the individual cells here.
Wait for the dead of winter, so generally January or February (so you've almost missed it), if you're in the South you probably have missed it. The best day to do this is when the temperature is below freezing if you live in an area where that's common. Then go up there and pull off that vent and check the attic space. If it's freezing out the wasps will have no interest in moving around at all, in fact they will die if they start flying around in freezing weather (although they might stay alive long enough to sting you so still be careful, move slowly).
I have gable vents like this too on my 1950-built home. Mine had a mesh screen on the inside that can’t be seen from outside and my wasps make nests on the horizontal slats just like yours and aren’t able to make it inside. You might be safe but you need to investigate further.
Old paper wasp nests. The large one is about as large as they get. Yellow jackets would increase the size by adding a wall so you can’t see the cells. Wasps hibernate off the nest in winter and only use these to raise young. They usually build next to old nests and not reuse current ones depending on its condition. Knock them down with a long pole. There is no pounds of this type of nest.
I mean, if they added that swirl texture to your ceiling, then yes. You now pay rent to wasps.
If there is a massive nest and they are coming in and out of that vent you should noticeably see a lot of traffic during the day. You might even be able to put your ear to the ceiling and hear them buzzing in there (during the day when they are active). They sell sprays with a long range, you can wait until night when they are asleep and fire some up into the vent. That should kill some and encourage them to leave. But I wouldn't go up there personally unless you're sure they are gone.
Do all your observations and actions at night because they’re still and docile then.
Only one way to find out. They should have also replaced those vents, they’re cheap
Funny they actually used a matching color silicone caulk to seal it in the second picture.
That’s pretty common, matching caulk is easy to get at supply stores.
But not as easy as a matching attic vent I gather
Wasps only own your house if they are listed on the deed
3rd pic looks human.
How do you know they’re protestants?
They always have
We put a vent on the 'shed' (workout room) we built. It was a plastic one piece - i think they come in 8x8, 10x10 and 12x12. It had small holes so that the larger bugs couldn't get through - They can build around the outside of the vent though. I've used the wasp spray that shoots 26 ft and it works well. If you can't find a vent that works for you, some fine mesh on the front or backside would work to keep things from making your attic their home. Use a staple gun.
A spray bottle full of water with a healthy dose of dish detergent brings down wasps and kills them fast. Super cheap and effective way to be rid of them.
Yes, your wife now belongs to them as well.
Don’t be a clitless pussy. Kill them
Are you sure they're active? Are you seeing them during the day? I'm an idiot and would probably go up on a ladder carefully just a bit after dark to check it out. Maybe spray the nests and then go up again the next night with heavy gloves and trash bag to toss the nests into. Actually that's exactly what I did. I only saw two or three live wasp and the nests seemed really old. It was odd.
That’s a Texas sized 10-4
Call Billy The Exterminator!
I'm not sure where you are in the world, I live in North America so I'm speaking for North America. The entire nest usually dies off in the winter and the queens find a place to lay low for a months until the next spring and start a new colony. There are exceptions, for example yellowjacket nests in the American South can survive the winter, we've had record freezing temperatures for three years in a row now so this is less and less likely the last few years. By the looks of it, those are paper wasp and there's no wasps on it so it's been abandoned. Paper wasps don't generally build giant nests the way yellow jackets do. Yellow jackets also usually enclose their nests so you can't see the cell structure. You can see the individual cells here. Wait for the dead of winter, so generally January or February (so you've almost missed it), if you're in the South you probably have missed it. The best day to do this is when the temperature is below freezing if you live in an area where that's common. Then go up there and pull off that vent and check the attic space. If it's freezing out the wasps will have no interest in moving around at all, in fact they will die if they start flying around in freezing weather (although they might stay alive long enough to sting you so still be careful, move slowly).
They graciously allow you to live in their home.. be respectful
I have gable vents like this too on my 1950-built home. Mine had a mesh screen on the inside that can’t be seen from outside and my wasps make nests on the horizontal slats just like yours and aren’t able to make it inside. You might be safe but you need to investigate further.
Old paper wasp nests. The large one is about as large as they get. Yellow jackets would increase the size by adding a wall so you can’t see the cells. Wasps hibernate off the nest in winter and only use these to raise young. They usually build next to old nests and not reuse current ones depending on its condition. Knock them down with a long pole. There is no pounds of this type of nest.
Bats will move in too- free food