Coast Live oak pest

[NickfromWI]

I've see these oaks (Q. agrifolia ) with spots of dead leaves. Finally got a call from a lady wondering what's the deal.

Pull some samples and did some twig dissection. Any idea what I'm looking at?












love
nick

 

[oldoakman]

Possibly a twig girdler? Just a guess.

 

[NickfromWI]

That's my hunch, too. But can't find enough info to be confident in my answer.


love
nick

 

[TreeLogic]

could it be gold spotted oak borer?

 

[guymayor]

could it be gold spotted oak borer?

Yeah i think you're on it; i was going to guess Agrilus sp. http://www.ipm.ucdavis.edu/PMG/PESTNOTES/pn74163.html

Hows the tree look Nick?

 

[NickfromWI]

Nah- they don't bore down the center of the twig and they don't have 2 spikes coming out of their head