Written by: Mary Lu Arpaia (Extension Specialist, UC Riverside) David Obenland (Plant Physiologist, USDA-ARS) Photos by: Mary Lu Arpaia We recently had the opportunity to visit Israel and spend several days looking at avocados including a visit with Zvi Mendel and Stanley Freeman, the lead researchers in Israel on the Polyphagous Shot Hole Borer (PSHB)...