The Polyphagous Shot Hole Borer is an ambrosia beetle that has a symbiosis with Fusarium sp. and is a serious problem for the Israeli avocado industry. If you suspect that you have found this beetle or seen symptoms of the Fusarium dieback in your grove or surrounding areas in other host plants please contact either your local farm advisor, pest control advisor, county Ag Commissioner office or Dr. Akif Eskalen by either phone 951-‐827-‐3499 or email at akif.eskalen@ucr.edu. You can also call the CAC office at 949-‐341-‐1955. Click here to download a fact sheet with more information.