View Full Version : Yellow jackets in my well

09-05-2006, 10:42 PM
There is a yellow jacket nest in my well cap. It has a temporary power connection and there is a small gap. Just about the right size aparently.

I have put a pherenome based trap next to the nest. I will see if it attracts workers faster than the queen makes them. However I need to put the new power wires in the cap.

Spraying anything toxic into my well seems like a bad idea. I would also rather like to minimize things dropping out of the nest and into the water.

I have thought about going out at night and taping over the hole. Then come back and put a bunch of dry ice on the cap. It they are actually on the cap it might freeze them to death.

Any ideas?

09-06-2006, 07:13 AM
Frst of all, there are many types of well heads.(deep drilled, 4", 6", 8"diam,, ,shallow 30" diam, etc, etc.
is this Well the drilled type,perhaps 6 "in diam, with a domed metal cap.?
if it is not, then please describe more accurately what type it is and others may help you out.

09-06-2006, 08:02 AM
Try a Shop-Vac.

09-06-2006, 08:06 AM
If they are in fact Yellow Jackets which usually make their nest in the ground, I understand they won't come out at nite. So the Shop Vac at nite might be the best way to go.


09-06-2006, 08:06 AM
If you cover the well cap with a plastic bag tight enough so they can't get out and leave it for a week it should kill them, you can also leave a bleach soaked rag in the bag and the fumes will help take care of them also.

09-06-2006, 09:05 AM
If you have a MIG welder, Argon will put them out.

You can also rent an Argon tank from a welding supply.


09-08-2006, 10:21 AM
The trap seems to be having an impact. After a couple of days I am not seeing traffic at the nest. But lots of annoyed wasps in the trap. I will let it go for a while and open the cap at night.

04-21-2007, 10:30 AM
Just a follow-up. The trap worked perfectly. And it did not leave yellow jackets inside the pipe to fall in the well.

The traps are generally fairly useless in controlling a nest unless you get the queen before she settles in to make a nest. But close proximity if you know where the nest is may be a good general solution to the problem.