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If your shed is relatively well-sealed you can use a wasp bomb. I have not used these on wasps but I have used them on roaches. As long as there are no edible items or items that you will eat off of, it would be worth a try. Make sure you use enough bombs for the cubic footage of space in the shed. It may require more than one.
No animals were injured or killed in the production of this post.
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Location: Wapakoneta, OH
I have wasps every year in my greenhouse. In the past I've used the insect smoke bombs and that did clear them out, but I'd rather keep them away altogether. I guess you hang this bag from the ceiling in a conspicuous place?
I started with absolutely nothing. Now, thanks to years of hard work, careful planning, and perseverance, I find I still have most of it left.
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Mothballs.
Wasps/hornets/yellow jackets were an annual hassle in my detached workshop situated next to our woods.
Read on a gardening site... or maybe our county extension’s web site about mothballs.
A couple of boxes late winter/early spring. Throw them in the rafters, in the space above the soffit, behind my stationary tools, in deep cabinets...
Keeps just about all the insects out all season.
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Location: Missouri
We use the plastic soda, homemade traps. Cut, invert, tape. fill with sugared down coffee and plane on emptying traps daily for a while.
We found the idea on Ytube.
Steve
Mo.
I miss the days of using my dinghy with a girlfriend too. Zack Butler-4/18/24
The Revos apparently are designed to clamp railroad ties and pull together horrifically prepared joints
WaterlooMark 02/9/2020