Ideas on how to spray a good amount of bee/wasp killer into a small crack?

There’s a yellow jacket nest in the electrical meter box attached to my house. There’s a small crack between the box and the house on the bottom of the box which is their way in and out. The past 2 nights I’ve been spraying and trying to get up in there but it’s not really getting inside, just piling up on the outside. Lots of bees are getting into the house, like 10 a day. Can I rig up a plastic straw on the spray nozzle, sneak it up and there and squirt in IN the crack? Any ideas on how to engineer a spray tube attachment?

In my continual war on nature I’ve found https://bonide.com/product/spider-ground-bee-killer/ to work well against wasp nests. The fuckers get it on themselves and then take it into the next

Can you not just caulk the crack? I’d try that to permanently close it up.

So bees are getting into your house? You might have a much bigger problem in that they have a hive in the wall. Hopefully the hive is in the electrical box, but there is much more space in the wall so that is where I would go if I were a bee. We had a similar problem in that bees were getting in the house. It turned out that the bees getting in the house were a small number of lost bees and most of them were in a large hive in the 1st floor ceiling/2nd floor floor. Go on the inside of your house on the other side of the electrical box and listen. You can hear a hive pretty distinctly.

Can you not just caulk the crack? I’d try that to permanently close it up.

https://i.imgflip.com/6xb1fq.jpg

That might just permanently close it up.

I’m sorry, but that’s better than Madden. I crack myself up.

There’s a yellow jacket nest in the electrical meter box attached to my house. There’s a small crack between the box and the house on the bottom of the box which is their way in and out. The past 2 nights I’ve been spraying and trying to get up in there but it’s not really getting inside, just piling up on the outside. Lots of bees are getting into the house, like 10 a day. Can I rig up a plastic straw on the spray nozzle, sneak it up and there and squirt in IN the crack? Any ideas on how to engineer a spray tube attachment?

Here in Europe we can buy spray kits with hoses to attach.

https://www.monmagasingeneral.com/808894-insecticide-guepes-et-frelons-kit-acto-300-ml-1169189.html?gclid=EAIaIQobChMI9ZHJ2Kbp-gIVB91RCh00YgnzEAYYASABEgJQ3vD_BwE

It is in french but you get the gist from the photo. Can you get something like that?