Here's the most comprehensive and best place I know of to get tested and confirmed methods of Yellowjacket control. (and mouse and rat control)
Shawn Woods has a channel called Mousetrap Monday on YouTube. (Link under his name to best DYI method of getting rid of 1000's of wasps in one day)
I have used the method of removal shown in the link and can tell you I killed at least 2000 wasps in less than 1 day. If you have a nest you need to remove it. They will grow and grow and when the queens fly late in the autumn you will have dozens MORE nests next year.
Get your hens out of that coop. They can be stung to death as well.
Shawn tests every trap and method out there and does it on video so you can see how he did it, how it worked (or didn't work) and how to do it yourself.
Good luck!
Shawn Woods has a channel called Mousetrap Monday on YouTube. (Link under his name to best DYI method of getting rid of 1000's of wasps in one day)
I have used the method of removal shown in the link and can tell you I killed at least 2000 wasps in less than 1 day. If you have a nest you need to remove it. They will grow and grow and when the queens fly late in the autumn you will have dozens MORE nests next year.
Get your hens out of that coop. They can be stung to death as well.
Shawn tests every trap and method out there and does it on video so you can see how he did it, how it worked (or didn't work) and how to do it yourself.
Good luck!