February 26, 2026

Who Has Been Digging Up the Wasps' Nests?


Something there is that does not like a yellowjacket -- 
but loves to tear up the nests and eat fat larvae. 

* * *  


This was a rough autumn in Wasp World. The tenant in our rental cabin, about 150 yards from the main house, reported being attacked by yellowjackets when stepping out on the back stoop. And he is sensitive to them, although not full anaphylactic-shock-death-sensitive.

The wasps got me too when I went over there.  They were coming out of a warp in the cedar siding. Time for action! There I went, gloved and jacketed, wearing a loose head-net over a plastic hard hat, climbing a ladder with wasp spray in hand.

After chemical warfare came expanding foam and calking compound. Eventually the buzzing stopped. 

Wasp traps lure with scent
But there were still some around, so we hung conical wasp traps (they fly in but can't fly out) front and rear. The number of yellowjackets in the air was considerably reduced, although not totally down to zero.

At the main house, we had paper wasps in the greenhouse, but they are not nearly as aggressive as yellowjackets , though they will sting -- particularly dogs, for some reason. I found their nest and dropped it in a bucket of water. They'll be back though, I'm sure

Someone else was hunting wasps too. I found the scene at the top about fifty yards from the cabin. Something had torn into an underground yellowjacket nest, torn out the chambers with tasty larvae in them, and departed. 

Then M. went walking and found another similar pillaged nest a quarter mile up the county road, as shown below. My first thought was "bear," but the damage was rather . . . dainty compared to what bears do. So maybe a skunk? They are always around. 

If you want to see how a bear approaches yellow jacket nests, watch this video from the Wilson Forest Lands YouTube channel

 

Now that's bear style!

For more on bees and wasps -- but mostly bees -- in Colorado, listen to this episode of the Colorado Outdoors podcast, "Pollinate Your Mind: Colorado's Native Bees."