Insect trap?

[pigwot]

Anyone know what species they're looking for here? A friend came across this in the wood near their home.

 

[Husabud]

I would think that is upside down, but I have no idea.

 

[FireFighterZero]

Would it matter what type of tree it was hanging off of? Maybe a specific pest of a specific tree?

 

[ValleyArborist]

Walnut twig beetle trap. Used to monitor thousand cankers disease

 

[FireFighterZero]

He aint lying!

 

[MasterBlaster]

There ya go!

 

[pigwot]

Thanks!

 

[stig]

Would it matter what type of tree it was hanging off of? Maybe a specific pest of a specific tree?

No, they are pheromone traps, using pheromones as lure, so you could place them anywhere.
Doesn't even have to be on a tree.

 

[matdand]

Same traps for EAB, I guess you just change the lure.

 

[squisher]

Yup.

 

[stig]

Yup, just switch Chanel no 5 for L'air du temps and you'll catch a different type of guy