Polyphagous Shot Hole Borer (PSHB)
New insect-disease complex strikes Southland trees!
UC Riverside scientists have identified a new insect-disease complex that is threatening avocado, coast live oak, box elder and other trees in Southern California. The complex includes a new shot hole borer and a symbiotic Fusarium species, which causes branch dieback. The same beetle and fungus have also been found in Israel, where the complex has caused severe damage to avocado trees since 2009.
Source: California Agriculture OnlineDownload Science Brief