OT Wasp In Shop

How do you keep mud dobbers out of your shop? I have a hard time with them building their nests on my tractors and on the shop walls.
 
(quoted from post at 19:51:05 11/25/17) How do you keep mud dobbers out of your shop? I have a hard time with them building their nests on my tractors and on the shop walls.
No opening bigger than a pencil.
 
Sock it to them.
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Can't do it. They build on anything and in anything. I knock the mud down when I see it and spray if I can't reach them.
Richard in NW SC
 
Wasp spray. Usually buy 30-40 cans a year. Don't be afraid to over spray them and their nests. We have terrible wasps here every year but hit them early and hit them hard the ones left alive usually decide to move somewhere else. They come back again after new hatchings so need to blast them again.

Moved into this different house last year and late spring they started hatching. Swarms of wasps on the house alone. Spent a couple hundred dollars and sprayed until my fingers hurt and the beer got warm. Counted 100 dead ones not to mention the many that were still struggling.

Reread your post and you are specifically talking about mud daubers... Same idea... Foaming wasp spray.
 
a friend in arkansas sprays wd 40 under the engine cover on his outboard motors to keep em out of the works. a lot of marinas there do it too. seems to work. you can prolly just spray critical areas .
 
I got a package of fumigators from Home Depot, had a bad wasp problem set one off late afternoon
next morning vacuumed up hundreds tore down nests I could find, no problems since, been three years
even discourages mice. did it again last fall just for good measure. Put one in basement this
fall no more spiders or fly's.
 
I seriously don't think it can be done, unless you want to smear grease on virtually everything you own.

I tried to open a little plastic parts drawer today, and a dirt dobber had almost completely filled the drawer with it's nest.

I've had them plug up the weed eater exhaust, and the automatic choke linkage on my Ford truck - several times in the same summer.

I think I'm on the migratory route.

I'd rather have those nasty red wasps. They don't cause as much damage.
 
They say sprays with cypermethrin will keep mud daubers away for a month or two and then you just treat again.

I just knock down the nest I see and live with them as they are beneficial warps.
If you are over taken by mud daubers there is a good chance you are also over taken by spiders and other insects.

So before you kill the mud daubers remember for every action there is a reaction.
 
I've started spraying where they get their mud too.l I keep my shop doors closed to make it hard for them to get in....but they do anyway, just find a different entry point. Horrible problem. Had a lawn tractor sitting out and removed the key to prevent theft. Next time I tried to use it the key hole was plugged and I couldn't get the key in nor the mess out. Had to buy a new switch.
 

The way they hover around on the sunny side of everything looking for a tiny hole to get in, I don't think that you can keep them out.
 
Just make sure to check the end of the fire extinguisher so they havent plugged that up as well.
 
Several of the alfalfa farmers around here use leaf cutter bees
for pollination. Those little buggers love to find all the little
holes too. Went to start my IHC MD one day and it wouldn't start,
and I had just used I a few days before. I took off the distributer
cap and it was full of their cuttings. So now, if it won't fire or start,
I check there first.
 

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